I'm fairly new to this hobby, and still finding my way. I've accumulated quite a collection of digital cars (GT and LMP), and finding intriguing differences. For example, while the Scalextric BMW, 911, Merc, and DBR9 all perform very well (track circuit times about 11-12 seconds), this can't be said for their Corvette (track circuit time about 14.5 seconds), which slews and deslots in ways that the others just don't. I've changed the braids to match those in the others, and added 10g of weight over the rear wheels, which has helped a bit, but is not the solution. I have two questions. 1. Is this the sort of variation I should expect across different cars (e.g. Corvette vs BMW) even within class (GT)? Or do I have a duff Corvette? 2. In either case, what might be the next steps towards a fix for the Corvette?