Overview & Reviews

The BMW Z4 is one of the more intriguing sports cars available. It's the successor to the original Z3 and is presently the company's only two-seat sports car. Defining traits include a front-engine/rear-drive layout, a hunkered-down stance, a long hood and rearward positioning of driver and passenger. While the first Z4 featured a traditional soft top, the current Z4 model has a sleek retractable hardtop that makes this fun-loving roadster a more viable all-weather option.

The current Z4 also represents a slight change in philosophy for BMW's roadster. Not only does it sacrifice ultimate handling for greater ride comfort and overall refinement, but it also employs a highly fuel-efficient turbocharged four-cylinder as its base engine. The result is one of the most well-rounded sports cars money can buy. You'll need a lot of it, though, as the latest Z4 certainly doesn't come cheap.

Current BMW Z4
The current Z4 is offered with rear-wheel drive in three trim levels: sDrive28i, sDrive35i and sDrive35is. The 28i gets a turbocharged 2.0-liter inline-4 that produces 240 horsepower and 260 pound-feet of torque. A six-speed manual transmission is standard, with an eight-speed automatic available as an option. The 35i comes with a twin-turbocharged 3.0-liter inline-6 good for 300 hp and 300 lb-ft of torque; its sole transmission is a seven-speed dual-clutch automated manual (DCT). The 35is utilizes DCT and a revised version of the regular 35i's engine, boasting 335 hp and 332 lb-ft of torque with a temporary overboost function that pumps torque up to 369 lb-ft.

Though the primary distinction between these trims involves what's under the hood, there are some other equipment differences. The sDrive28i comes standard with 17-inch wheels, adaptive xenon headlights, keyless ignition and entry, dual-zone automatic climate control, eight-way power seats, Bluetooth and adjustable driving settings that change the programming for the steering, throttle and (if specified) automatic transmission. The sDrive35i adds 18-inch wheels, sun-reflective leather upholstery and sport seats. The sDrive 35is is similar but comes standard with an upgraded audio system and the performance-themed M Sport package (optional on other Z4s). Option highlights include heated seats and steering wheel, front and rear parking sensors and a navigation system.

In reviews, we've found the latest BMW Z4 to be an impressive and highly refined sport touring car, with a surprisingly roomy interior and decent trunk space as long as the retractable roof is raised. Although the turbo-4 makes less power than the old inline-6, it's got more torque, and fuel economy is substantially improved. Besides its rather agricultural grumble at idle, this is a sweet little engine. Should you want for more, the ultra-smooth and seriously quick six-cylinder models are bound to please.

The Z4 is generally a hoot to drive, especially if you go for the optional M Sport package and leave the adjustable drive settings in Sport mode. However, its reflexes and communication with the driver are a bit lacking due to a numb electric power steering system, a fairly hefty curb weight and a predilection for understeer. Still, we think most buyers will appreciate the Z4's firm yet compliant ride and accomplished all-around performance. A spirited top-down journey in a Z4 is a wonderful way to spend a sunny day.

Used BMW Z4 Models
The current, second-generation BMW Z4 was completely redesigned for 2009, as the previous coupe and roadster models were melded into one with the introduction of a retractable hardtop. The styling was revamped to be more curvaceous and fluid than the avant-garde first generation, while the interior gained some space, style and improved materials.

If you're looking at used second-generation Z4s, there are a few notable changes to keep in mind. From 2009-'11, the base Z4 was known as the sDrive30i, and it featured a carryover 3.0-liter inline-6 that produced 255 hp and 220 lb-ft of torque. The transmission was a six-speed manual or an optional six-speed automatic. This is a superb engine on its own merits, but it's not as fuel-efficient as the subsequent turbo-4, which replaced it for 2012 when the base model became known as the sDrive28i. The eight-speed automatic was introduced at the same time, supplanting the six-speed unit. As for the sDrive35is, it debuted for 2011 along with the M Sport package for lesser models. Finally, the sDrive35i could be had with a six-speed manual of its own until 2015.

The first-generation BMW Z4 was introduced for 2003 with controversial "flame-surfaced" styling. Originally, there were two roadster models available, identified as 2.5i or 3.0i. The 2.5i had a 2.5-liter inline-6 that made 184 hp, while the 3.0i used a 3.0-liter inline-6 that generated 225 hp. For transmissions, there was a five-speed manual (standard on the 2.5), a six-speed manual (standard on the 3.0), a five-speed automatic or a six-speed sequential manual gearbox (SMG). Standard equipment included 16-inch wheels (17s for the 3.0i), a manually operated soft top (with rear glass) and leather upholstery for the 3.0i. Major options included a power top, xenon headlights and a navigation system.

A significant update occurred for 2006, including the debut of the fixed-roof Z4 Coupe and revamped trim levels with new engines -- the 3.0i (215-hp inline-6) and 3.0si (255-hp inline-6). The Z4 Coupe was offered in 3.0si trim only. A six-speed manual transmission was standard on every Z4, while a six-speed automatic was optional. The largely disliked SMG transmission was dropped. Other changes included a retuned standard suspension for better ride quality, a revised final-drive ratio for improved acceleration and updated styling. High-performance M versions of the Z4 were also offered and are reviewed separately here.

Although we prefer the updated 2006-'08 models, every first-generation BMW Z4 rewarded drivers with an engaging driving experience. In reviews, our editors praised the car's sharp reflexes and quick acceleration, though the ride could be a bit rough -- particularly prior to '06 -- and the steering wasn't as communicative as some competitors. The Coupe possessed a slight advantage in terms of handling due to its added body rigidity.

User Reviews:

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  How to get a smile on my face? - 2003 BMW Z4
  By silverwolf714 - December 19 - 10:00 am

  I was looking for a convertible for quite some time. When the Z4 came out, I immediately thought I can stop looking. Love the looks, and love the performance even better. I had wanted to keep my old car since it was paid for, but after driving the Z4 for a couple of weeks, I simply had to sell the old car. Now I am buying a truck as my second vehicle because I simply refuse to drive anything else. Drive one and youll know what I am talking about.

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  2003 Z4 - great , Dealer sucks - 2003 BMW Z4
  By dturk - December 17 - 2:00 am

  Wasnt in market for car (getting 530i), but took a ride after hearing about dealer incentives. Car is addictive bought it. Very precise and responsive. Well worth the price paid (under $39k for loaded vehicle listing over $47k). Only problem is dealer salesman rammed it with a customers used car a few days later (381 miles) when I took it back for a paint problem. Now dealer acts like I dont exist. Got an email into BMW North America to see how they handle it. Meanwhile having to use own insurance to get it repaired.

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  THIS IS THE ULTIMATE DRIVING MACHINE! - 2003 BMW Z4
  By muscler - December 17 - 2:00 am

  This car is as close to perfect as I have ever seen. I previously owned an Acura TL, one of the "sports sedans", but nothing can compare to this car! You dont have to sacrifice much in the way of comfort and utility for this much style and performane. Many say the styling is "controversial", but it is really the most beautiful car I have ever seen. Though it only has 225 hp, my Z4 has beaten Corvettes with close to 400. I love the vicious growl of its engine in the cold morning air. I cant imagine how a 3000 lb. car with 225 hp can go that fast. Others cannot even compare to it. Wonderful BMW. This is the roadster to own!

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  AWESOME - 2003 BMW Z4
  By Piratjoe7 - December 13 - 2:00 am

  The z4 is an awesome car. Not only in its drive and handling, but the cool factor is through the roof. Its simply unique in its exterior design, and stands out beside all other roadsters out there today. If the exterior doesnt float your boat, just go drive one. Its amazingly punchy, and takes corners with no problem. Many people who have ridden with me are amazed at how you can take a corner at "excessive" speeds, without it jarring them into their side door.

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  Great Car - 2003 BMW Z4
  By Paul Schroeder - December 12 - 2:00 am

  This is a great car. It is put together well and very quick with the 5 speed. The steering is quick and precise and the upgraded stereo sounds great. The car sounds great, just like a roadster should. We also have a Corvette, and the two compliment each other well. The Z4 looks, feels and sounds like something out of a Bond film, whereas the Corvette is like taking off in a rocket. Highly recommended.

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  FUN TO RIDE - 2003 BMW Z4
  By 1ST SERGEANT - December 10 - 2:00 am

  I RECENTLY PURCHASED MY Z4 AND I AM VERY HAPPY WITH THE AUTO. I GIVE HIGH TO BMW FOR ITS DESIGN EFFORTS AND BUILD QUALITY. THE DESIGN IMPRESSES ME MOST FOR ITS EYE CATCHING LINES AND STANCE. IT IS VERY DIFFERNT IN SOME RESPECTS FROM OTHER AUTO THAT YOU SEE ON THE ROAD TODAY AND THAT IS WHAT APPEALED TO ME IN MY SELECTION PROCESSES.

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  Love it, Love it!! - 2003 BMW Z4
  By Rebalol - December 6 - 2:00 am

  Ive wanted a convertible sports car all my life and I fell in love with a Z3 (by site only) back in 98. When I could finally afford to buy what I wanted, I did lots of research and decided the Z4 was my best buy. It has not only met all of my expectations, it surpasses them. I love the speed, I love the handling, I love the looks I get when I drive it!

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  Love it. - 2004 BMW Z4
  By jfuex - December 1 - 2:00 am

  I bought this thing to make my daily 35 mile (each way) commute to work more tolerable and I have to say it sure is incentive to get out of bed in the morning. The acceleration will throw you back in your seat and is very consistent all the way up as far as I have pushed it. Even at 125 it felt like it had a lot left to give. I cant imagine what the 3 liter must be like. The transmision is so smooth that you would hardly notice the shift points unless you are conscioulsy watching the tach for them. Top notch car!

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  Pure Roadster Experience - 2003 BMW Z4
  By Chris02 - November 29 - 2:00 am

  A great car to drive and to maintain. Every feature is of high quality and reliable. The design is classic and will be as sought after twenty years from now just as the 50s Mercedes SL 190 is today. The SMG (semi-manual gearbox) adds substantially to the driving experience. The car is far superior to the Audi TT (the slowest roadster ever) and the SLK. Comparable are the Boxster S and the AMG SLK, but both are quite a bit more expensive. Thus BMW gives you the by far best deal for your money. As an advice, do not save on the extras and get as many as you can. You will appreciate it later and every time ou get into your roadster.

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  Immediate Gratification - 2003 BMW Z4
  By HawaiianZ - November 28 - 2:00 am

  Traded up from a Mazda RX8. What a noticable difference in performance and handling. SMG performance is outstanding as is the acceleration in all gears. Auto top is quick and effortless. Gas mileage is averaging 27- 28 mpg! Fit and finish immaculate with no noted faults or defects. Wife loves driving it and likes the electronic seat adjustments and looks of car. Immediate gratification for the senses!