Quote:
Originally Posted by Orient330iNYC
this is interesting:
Abetted by the optional four-wheel steering, the X7 xDrive 40i also exhibits excellent lateral stability around the skidpad, where it hangs on with 0.92 g of grip—that absolutely stomps the Range Rover Sport (0.81 g), not to mention the racier X7 M60i (0.85 g). Defying its 5545-pound curb weight, this SUV also stops from 70 mph in just 149 feet, outbraking both the M60i (155 feet) and the Audi RS Q8 (158 feet); it also stops shorter than the Lamborghini Urus Performante (152 feet).
i wonder if the M60i had all seasons on
the slight weight difference between the i6 and V8 shouldn't make for that much of a difference.
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It seems like they were using the same tires. I agree it shouldn't make THAT big of a difference, but it's important to keep in mind what the roadholding skidpad represents. It's not really an indicator of overall handling... as it says nothing about weight transfer when maneuvering at high speed. It's literally just lateral grip in a constant speed/direction. So if anything, it's an indicator of how top heavy the car is (or isn't). So any added weight not towards the bottom of the car would negatively impact the skidpad rating. In this case... 300 lbs of added weight.
All this being said, I'm with you - 0.07g difference is pretty large.