I love the looks of these and considered one when I was looking, but was pretty surprised to see a v8 jag only did 0-60 in 4.4 seconds. You needed to bump up to the 115k model to get 3.5 seconds or something similar. I wound up going with the new RS3. Man that jag sounds good though
The difference between V8 P450 and the R is just a software tune from the factory. The P450 will do 600 HP with a $1,000 software ECU tune from Viezu and others, even with no hardware upgrades. Supercharger pulleys and cooling systems are identical between P450 and the R. This is why buying P450 is a much better deal than any of the R's in the market. The best deal for the new F-Type is P450 RWD, which is the lightest configuration for the F-Type V8 at 3760 lbs. It's about 200~250 lbs lighter than any F-Type V8 AWDs. When the warranty expires, just tune the P450 RWD to P600 and put Michelin Pilot Sport 4S, and you have a genuine supercar beater at a fraction of the price.