These are truly awesome. I love the lashings of clear coat NSR slap on them. I suspect the shot wheel base is contributing to 'fastest lap' on your twisty circuit? I have the Escuderia Montjuich - 24h Le Mans 1972 #5 livery (green and yellow) which I would recommend if you can get one. I think a lot of us have the red and white No31 car. Maybe add suspension and change the gear ratio or maybe even try a 25k motor, tyres, guide and find out just how low you can go?