The weight difference is significant between ZL1 and 1LE, and even if you can ultimately do better times with the ZL1, and I'm sure it depends on track, and you'll be fighting the car a lot more. Is it worth it? I don't think so. After all, if lap time is my only goal, I'd buy a first gen Miata, add a turbo, a little wing (so it doesn't fly!!), and pass anything south of $100K with that $10K junker
