Convertible Comparison

Summer is the perfect time to enjoy open top fun. And there are few automotive experiences as gratifying as a top-down cruise on a twisty road in a well-sorted roadster.


We recently had the opportunity to test three outstanding German six-cylinder two-seat roadsters, both on the road and on the four-mile road course at Elkhart Lake, Wisconsin’s Road America. The side-by-side comparison revealed the strengths and weaknesses of each. Each has limited space, both for people and for cargo. But each also has a well-thought out, high quality interior, and they all provide a pleasant place to spend a summer afternoon. The following is commentary on how they compare and why you might choose one over the others. Our picks are listed in order of preference.

2008 BMW Z4 3.0si

Base price: $40,400. The 3.0si model is powered by a 255-hp 3.0-liter inline six-cylinder engine, and our tester was equipped the only way a roadster should be, with a six-speed manual transmission. The Z4’s greatest strength is its handling. The car was right at home on Road America’s demanding high-speed circuit. Planted and rock steady, the Z4 proved to be comfortable at speed and stable during braking. The smooth six-cylinder kept pulling as speeds increased. The Z4 was able to carry the most speed through a long, sweeping turn and do so with a minimum of body lean. Add great steering feel and a slick shifter, and the Z4 is an excellent sports car that performs even better than expected.


On the road, the Z4 also offers a pleasant ride. It’s firm, but forgiving. The rigid body structure minimizes cowl shake. The sporty bucket seats keep you planted firmly in place in high-speed corners. Bottom line, the Z4 is the choice if you put handling prowess at the top of your list. Surprisingly, it’s also the most affordable of this bunch. (www.bmwusa.com)

2008 Audi TT 3.2 quattro

Base Price: $44,500. When it comes to handling, the TT 3.2 quattro fits between the Z4 and SLK. It has a light, toss-able feel and sharp moves despite a bit of a lopsided 57/43 front weight bias. The TT doesn’t feel as planted or hold the line in a long, sweeping turn as well as the Z4, but it is still very fun to drive.