BMW fans, this one's for you!
So let's see how the 2 compare. Beginning with the M3 Touring, it's powered by a 3-litre twin-turbo straight-six that can deliver 510hp and 650Nm of torque. It powers all four wheels and suggestions the scales at 1,865 kg.
Then we have the X5M. Powered by a 4.4-litre twin-turbo V8, it's up on power compared to the M3, and has the ability to put down 625hp and 750Nm of torque. It's up on weight compared to the M3, too, can be found in at 2,410 kg.
So will the huge weight difference prove definitive? There's just one way to learn … LET'S RACE!
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