
Inside, the gussying up includes gray-faced gauges with “sDrive35is” logos, an anthracite-colored headliner for the folding hardtop, M door-sill badges, and “aluminum carbon” trim.

A body-colored rear diffuser with sculpted exhaust surrounds and silver-colored mirror caps are unique to the Z4is.

Moreover, Z4is buyers get a magnificent-sounding and specially tuned exhaust that sings a raspy melody best experienced with the top down, of course. Part of that premium goes toward the engine upgrades, but the car also includes the M Sport package ($3500 on the 35i) that adds 18-inch wheels (19s are a further option), an adaptive M suspension, sport seats, a thicker M steering wheel, a body kit, and an increased top-speed limit of 155 mph. The Z4is starts at $61,925, some $7600 more than a Z4 sDrive35i with DCT.
#Drive 2011 car manual
The new seven-speed, dual-clutch automated manual (abbreviated DCT by BMW) is the only transmission offered on the Z4 sDrive35is. The 335is makes 320 hp, down 15 from the Z4is because of more restrictive airflow, and the 3er gets an upgraded cooling system with an additional radiator and cooling ducts this modification isn’t found on the roadster because BMW admits it doesn’t expect many owners to track their Z4s. If the engine computer is satisfied with turbo temperatures and other vital signs, the incremental torque boost can be accessed over and over again under wide-open throttle. Mash your right foot to the floor, and a computer-controlled overboost function will provide a seven-second gust of 37 additional lb-ft of torque.
#Drive 2011 car software
The N54 was good for 300 hp and 300 lb-ft in its previous, more ordinary applications, but all the “aye ess” cars receive software that cranks up the turbo boost, for a total output in the Z4 of 335 hp at 5900 rpm and 332 lb-ft of torque from 1500 to 4500 rpm. That 3-series model and this Z4 are powered by an uprated and upgraded version of the sweet N54 3.0-liter twin-turbocharged inline-six. It’s no coincidence that BMW announced its new 335is in the same time frame as it did the Z4 sDrive35is. So what’s up with this sDrive35is model? It’s ostensibly the Z4 for those who want an Ultimate Driving Machine, so why throw more thrust-35 hp in this case-at a car that already has plenty and not fix the disappointing chassis? To charge more, of course, for what amounts to little more than some standardized options and what an aftermarket tuner could do with an ECU reflash.

The clues are there in the folding hardtop, the electric hand brake, the light steering, and so on-the Z4 isn’t aimed toward enthusiast drivers. Given the brilliance of nearly every other BMW, the unfocused handling of what should be one of the company’s sportiest cars is even more of a bummer. BMW has long made machines that embody its “Ultimate Driving Machine” motto, but some of its more recent products have been more emblematic of the company’s other, softer, and less focused tagline, “Joy.” For example, instead of a thrilling, satisfying roadster, the Z4 is a boulevardier more likely to be parked among a sea of beige luxury SUVs at the country club than spotted hustling over mountain passes.
