Enter the Z4, which is longer, wider, heavier, faster, and more of a sports car than the Z3 it replaces.
Styling is controversial, but effective: the Z4 has a drag coefficient of just 0.35 (top up), excellent for a roadster.
The Z4 rides on a 98.2-in. wheelbase, up from the Z3’s 96.3 in. The track is wider by 2.4 in. (front) and 1.2 in. (rear).
There is 0.2 inches more legroom and 0.8 inches more shoulder room in the Z4 than in the Z3, and more stowage space.
2.5i: 184 hp/175 lb-ft. 3.0i: 225 hp/214 lb-ft.
Run-flat tires are standard on all Z4s: eschewing a spare wheel and tire both saves weight and frees up trunk space.
The 2.5i costs $33,795 including destination; the 3.0i is $40,945. There are three major upgrade packages.
There are two engines: 2.5-liter and 3.0-liter versions of BMW‘s superb M54 in-line six-cylinder powerplant.
Y-form front longitudinal members and front and rear underbody thrust plates improve stiffness.