Ohhww Thx folks .
Some detials of the cars i use
1st the Lamboghini Murcielago nr. MC 0026 MRRC with a 22k motor gear 10 : 27 Hub tires standard
2nd Aston Martin DBR kit nr C 3082 Scaley ,, ,, 22.4 k motor ,, 12 : 36 17X12 20X12
3d Ford GT-R nr.C 3136 ,, ,, ,, 22.5 k ,, ,, 11 : 36 17X12 20X12
Max speed aprox 30 km/u
Straight lenght in this layout aprox over 4 m.
So far so good.
Kindly regards Jane