40 minutes won't kill ANY car. I've driven more 300+HP cars at the track then 100-150HP cars...
I ran four hours in a boosted Miata (around 275HP) and didn't even change pads.
These are also obviously sessions broken down, not straight. I mean hell a brake pad change is rare in a ten hour race.You DEFIANTLY won't even scratch a tire in 40 minutes and if your engine can't handle that it's shitty anyway.