BMW M3 and M4: which is best?
M Division has been in the laboratory cooking up turbos. Ollie Marriage investigates…
Posted: 07 Jul 2014
The suspension is completely bespoke, ditto much of the engine bar the capacity itself – M division has a lot of autonomy in the design and development of its cars. The driving ethos this time, besides how to enable the car to cope with an extra 110lb ft of torque, was to lower the weight. It comes in 80kg lighter than the old one. I bet you’re thinking the lion’s share of that comes from the smaller motor, but once you add in all the ancillaries (intercooler, turbos, pipework, etc), straight-six betters V8 by only 10kg. Instead, the weight savings are across the board: carbon propshaft saves 5kg, front seats are 7kg lighter (and, in a second snaky analogy, the seatback shape reminds me of a hooded cobra), rear bootlid saves about another 5kg, etc. And both are identical, don’t forget. Well, the saloon’s rear entrances mean it’s that bit heavier and has a fractionally more rear-biased weight distribution.