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How much quicker is petrol than diesel?

Well to find out, we’ve got our hands on the most powerful petrol & diesel BMW X7s to see just how different they really are! So let’s check out the stats…

Starting with the M50d, it’s packing a 3-litre straight-six diesel under the bonnet that can produce 400hp and 760Nm of torque. Power is sent to all four wheels via an 8-speed automatic gearbox, and it tips the scales at 2,460kg. If you’re looking to pick one of these up now, it’ll cost around £88,000.

Then we have the X7 M60i. It’s housing an enormous 4.4-litre twin-turbo V8 under the bonnet, and this can put down 530hp and 750Nm. It’s a fair bit heavier than the M50d, coming in at 2,675kg, and it’s also a whole lot more expensive, costing around £130,000!

So the petrol-powered X7 has more power, but will the weight difference prove decisive? There’s only one way to find out… LET’S RACE!

Thanks to everyone who lent us cars for this video:
- M60i: @wam_barn
- M50d: https://www.instagram.com/dna_autohaus