[DarkSunrise]

Originally Posted by Turbowned

That's certainly debatable. Stock-for-stock, the 370Z is already at a significant advantage, with a power:weight ratio of 9.8:1 (that's quick!), against the FT86's 13.8:1. Getting the FT86's power:weight ratio to eclipse that of the 370Z for the same or less money could be pretty tough.

However, it can certainly be argued that it would be cheaper to run an FT86 than a 370Z on the track because it's lower weight, skinnier tires, smaller brakes, less fluids, etc. Your consumables cost would be significantly less, and in addition to them being smaller, the FT86 would probably wear tires and brakes slower because it is a lighter car; i.e. less mass to throw around and slow down. It also returns better fuel economy, so you'd burn less gas after your lapping session, too.

+1 This to me is the biggest advantage of the BRZ over the 370z. Over the lifetime of the car, it should be significantly cheaper to track/auto-x the car than a 370z. And as Subaru execs love to harp on about, you can throw in a set of track tires/wheels and a jack in the BRZ.