Lol, I now also have a merc too so I can compare all 3 :D Nice to hear of your A6, I’ve learnt that Audi stopped shipping those petrol V6s this way pretty early on. So they’re a rare commodity. The 640 has one of BMW’s most regarded straight 6 engines - N57. On paper the 640 has more horses and more...
most literature suggests the modern TwinPower units are single turbo based. the link I sent below reads 'modern BMW TwinPower engines don't necessarily use twin-scroll turbochargers, but they do have a distinct exhaust manifold that catches more exhaust pulses to feed the turbo and thus create more ...
hello all, My mission to buy a mid-life crisis car went from SLK or Z4 (posted here sometime back) to Porsche Boxter to Merc E350 cab to now finally in the process of purchasing a BMW 640i :P The pre-owned 2011 car just came into the dealership is still being 'prepared' by BMW, est. 1 1/2 weeks befo...