robg said:
How much heavier is the e65 than the e38. They did make a 728i in the e38 body style!
I actually do think these cars would sell well (big body w/ small engine). Even in the US, there are always people that are interested in the comfort/prestiage of the "big model", and who don't care at all about performance (as long as it could do 0-60 in under 11 seconds). Then again, it might be an embarassement to BMW to create such an underpowered model. But, w/ the new generation of sixes and the right rear-end ratio, it could probably be viable even w/ the e65.
It may come as a surprise to some, but not everyone buys big barges to blow 350Zs away at the lights

. Money spent does not always correlate one-to-one with accelerative ability - after all, how else does one explain the success of the Land Rover Discovery?
Looking at a benchmark luxury sedan, the S-class, the most popular variant is, by a big margin, the S320 CDI. It has good acceleration, perhaps on a par with a 525iA, but it is not a sports car. I would think the higher kerb weight of the 7er would give BMW's revvy new petrol six a hard time. The facelifted 7er now has the uprated diesel engine, with 228 bhp, 520 Nm torque (about 385 lb-ft) and a wider power band than before. (It is the last bit that for many petrol fanatics means that diesel will stay off the menu.)