BMW 6 series convertible launched.

The 2011 BMW 6 series convertible is here, looking less outrageous than the previous model but with a host of new turbocharged engines.  It comes as a surprise, though, that BMW decided to release info on the convertible version first rather than the coupe.

Like Mercedes benz, BMW has been busy getting turbocharged engines for its flagship models.  But while the cars with the three point stars have seven speed transmissions, this car will get the new eight speed automatic transmission seeing service in other BMW models.

The new 6 series convertible shall initially have two turbocharged petrol engines.  For the 640i model, you can expect a single-turbo 3.0l inline 6 cylinder engine producing 320hp and 450 nm of torque (about 331 lb-ft).  The new drop top will accelerate from 0-60 mph in 5.7 seconds and on to the default electronically limited top speed of 155 mph. 

The 650i model gets a 4.4l twin-turbo V8 with 407hp and 600nm (442lb-ft) of torque, with a 0-60 mph of 5.0 seconds, but the same 155 mph top speed as the 640i.  The V8 has a design unique to BMWs in the sense that the exhaust manifolds and turbochargers are found between the cylinder banks rather than either side of the engine.  BMW claims that this layout is better for packaging and contributes to better efficiency.

Speaking of effieciency, the 640i will achieve 35.8mpg on the combined cycle and a CO2 rating of 185g/km, while the 650i will do 26.4 mpg and produces 249g/km.  Both cars also feature brake energy regenration and an electronic power steering system.

Prices for the new 6 have yet to be announced, but it will go on sale in the UK in March 2011.

---