Video: BMW M760Li xDrive vs Alpina B7 Biturbo Hot Lap

7-series, Racing, Videos | September 6th, 2017 by 10
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The guys from Car and Driver have put a series of 2017 cars through their yearly Lightning Lap challenge and BMW was well represented this …

The guys from Car and Driver have put a series of 2017 cars through their yearly Lightning Lap challenge and BMW was well represented this year. The German group had no less than four entrants in this year’s event, if we count both the MINI Clubman JCW and the Alpina B7. After all, they are built on BMW-owned assembly lines and therefore should be included here. What we have posted below though is a comparison we’ve been waiting for some time, pitting the Alpina B7 Biturbo against the similarly powered BMW M760Li xDrive.

Ever since these two cars were unveiled by BMW and Alpina respectively, people have been wondering which one would be faster around a track, even though they haven’t been built for that purpose. The reason why a lot of us were curious lies in the spec sheets of the two. They have the same amount of power and torque going to all four corners of the cars, 600 HP and 800 Nm (590 lb-ft) of torque. To some extent they even use the same gearbox but each car has different settings.

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While the BMW M760Li xDrive is geared more towards sportiness, with car being an M Performance model, the Alpina is set up to be as comfortable as possible most of the time. Nonetheless, the biggest difference is the engine under the hood. Even though the specs are the same, down to the acceleration times, while the BMW uses a 6.6-liter V12 shared with Rolls-Royce, the Alpina B7 Biturbo uses a reworked version of the 4.4-liter twin-turbo V8 from the 750i.

Therefore, what we have here is basically a race between a V8 and a V12, on the track, between two limousines that most likely will never be used in this fashion. The end result might be surprising to some but even so, I know what car I’d rather go home with as you simply can’t beat the smoothness of a V12.

10 responses to “Video: BMW M760Li xDrive vs Alpina B7 Biturbo Hot Lap”

  1. 2sfhim says:

    The thing is, if you read the article carefully, both cars had engine management issues, but while it was only occasional on the B7, it was systematic on the M760Li and the engine would lose power. This wasn’t the case of the Audi S8 Plus which is also a bit faster than the B7. So congrats to Audi engineers. The Audi is the lighter short wheelbase though.

    • Kaisuke971 says:

      The track was dry when the Audi wad setting its laptime, slightly damp for the B7

      • Rubens Barichello says:

        Another excuse typical of a bmw fanboy. Have a nice day.

      • Terry Cowan says:

        So true! Once couldn’t get an M3 out of a parking garage because the ramp was wet, rubber makes a huge difference.

      • 2sfhim says:

        I really doubt the damp track made a huge difference. Conversely the S8 Plus ran with direct and hot sunlight, so the track was warm and tyres heated more. This is also an important factor.

        • Terry Cowan says:

          Apparently the 5,000 lb. sedan drove like a limo, wafty, resistant to high revs, defaulting into limp mode before finishing a lap – at last we have proof it is competition for the Tesla S! Except for the high revs. Why would anyone take this or the S8 to a track?! Unlike Tesla, there are better models to chose from.

  2. Rubens Barichello says:

    The AUdi S8 kicks the stupid asses of both these miserable toys. Much faster lap time.

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