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      01-21-2010, 10:16 AM   #23
xDrive50i
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Quote:
Originally Posted by M3 vert View Post
I think the car looks stunning, I dont even mind the wheels.

But correct me if I am wrong, why did they retain the same engine from the E65/66 Alpina B7 is beyond me...

I mean they should have bumped up the power on this F01 B7.

The previous and current generation Alpina B7 have the same engine!

The 760Li went from 438hp 445lbft to 544hp and 553lbft, now thats progress
If I recall correctly, the E65/66 Alpina B7 used the same engine as the E65/66 with modifications to bump up the HP and torque. The F01 B7 Biturbo uses the same engine as the F01/F02 again with modifications to bump up the HP and torque. The difference between the engine used in the previous generation Alpina B7 and the new Alpina B7 Biturbo is that they create about the same amount of HP but with a smaller engine displacement which should also result in better gas mileage!
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      01-21-2010, 10:38 AM   #24
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The engine in the F01/F02 B7 is completely different than the engine in the E65/E66 B7.

While the rated specifications for torque and horsepower in the new Alpina twin-turbo 4.4 liter V8 are the same as for the old supercharged 4.4 liter V8 (based on the older V8 found on the pre-facelifted 745i, not the 4.8 liter V8 in the E65/E66), in the only actual driving review I've read, the reviewer believes the horsepower and torque in the new engine is significantly underrated.

An important clue to how much power is actually in the B7 is that Alpina supposedly considered every transmission in BMW's current inventory before settling on the ZF 6-Speed switchtronic as the only transmission sufficiently durable to handle the B7's power. Presumably Alpina's consideration included the 8-speed in the 544 hp/533 lbft rated 760li and that transmission was found wanting. Draw your own conclusions.
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      01-28-2010, 07:40 AM   #25
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Quote:
Originally Posted by SleepTight View Post
The engine in the F01/F02 B7 is completely different than the engine in the E65/E66 B7.

While the rated specifications for torque and horsepower in the new Alpina twin-turbo 4.4 liter V8 are the same as for the old supercharged 4.4 liter V8 (based on the older V8 found on the pre-facelifted 745i, not the 4.8 liter V8 in the E65/E66), in the only actual driving review I've read, the reviewer believes the horsepower and torque in the new engine is significantly underrated.

An important clue to how much power is actually in the B7 is that Alpina supposedly considered every transmission in BMW's current inventory before settling on the ZF 6-Speed switchtronic as the only transmission sufficiently durable to handle the B7's power. Presumably Alpina's consideration included the 8-speed in the 544 hp/533 lbft rated 760li and that transmission was found wanting. Draw your own conclusions.
Interesting, just like the S600/65AMG use the 5 speed wheras the 550/63 use the 7 speed!
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