Colin Chapman would be proud. You made excellent improvements on the car. The F2 car performs well, especially the ability to hang the tail out. Lots of fun! The 59 car is a great teaching tool as far as throttle control goes. It's my go to car for exercising patience with the right foot. These mods are so good, any changes from here on out should be minor. I don't mean to argue with any of your fans, but racing treads on tires do shine, they shine like crazy depending on tread patterns and compounds. Having driven endurance and formula cars in the US, those hot, humid afternoons produce lots of shine on the track surface and tires (tyres). It can be blinding at times. the effect is better with pp filters, for sure. Again, great work!