We've seen the Tesla Model S P85D compete against some formative opposition before, but Autocar had one on hand and wanted to see what it was like against something on the opposite end of the spectrum. The P85D is at heart a luxury vehicle and weighs roughly 4,900 lbs. The P85D's competition, the Caterham 620R, has a scant weight of approximately 1,201 lbs. However, the differences between the two vehicles doesn't end with their weights.

The P85D weighs more but, it also produces almost 370 hp more than the 620R. The P85D has all-wheel drive while the 620R is a purist's dream with rear-wheel drive. On paper this race should be extremely close.