In the absence of Z4 in the M family, BMW is launching the BMW Z4 sDrive35is, a roadster that's even more efficient than previous generation Z4M. Around April 2008 the official from BMW said that the letters M and Z will not be found simultaneously in the denomination of any roadster built by them in the near future. Many believed at the time that the Bavarians will deprive us of sporty roadster in pure expression, but apparently they were wrong. Because a few months ago the germans had presented us sDrive35is BMW Z4, which although not recognizable as an M, is at least as sporty as the "deceased" BMW Z4M . Thus Z4 sDrive35is paper is the most powerful roadster built by the Germans, with 340 hp and 450 Nm of torque. Compared to the Z4 sDrive 35i E89, who shares the same engine and 3.0-liter biturbo new version has an additional 34 hp and 55 Nm, and to the "original" M it has 10 more hp and almost 100 Nm. It should also be noted that there is another advantage over Z4M, the automatic transmission with double clutch and seven reports. Let's not forget the Overboost function, which in tuff starts can offer 50 Nm. Z4 sDrive35is has also the EfficientDynamics system, this model is as greedy and polluting as the derived version.
The big question is if it exceeds standards of sportivity set by Z4M mentioned above. And the answer is NO, only on paper it equals him. Despite higher specifications, Z4 sDrive45is has a big compromise - the retractable metal roof, that translates into more kilograms. Theoretically the new roadster can reach 100 km/h in 4.8 seconds and a limited top speed of 250 km/h, the same values as the predecessor. Remarkable is the fact that the BMW Z4 sDrive35is, at first sight, marginally more sporty (+0.1 s to 100 km / h) than the only model which can be compared with, Mercedes SLK 55 AMG, although it has an advantage of 20 hp and 100 Nm.
Concluding discussion about rivalries i would say that Z4 sDrive35is can be distinguish to the rest of range because of a few subtle differences, like the aesthetic kit designed by M division. We have outside the 18-inch wheels and suspension M, which lowers the guard with 1 cm. Outside, the mark M can be seen on the steering wheel and sporty atmosphere is cultivated by the seats with a profile sculpted even more radical.
