Hi Andy P and Gorp, I really am a scalextric newbie, and boy how it shows. Using your combined ifo, I think I may have solved the problem. I was thinking about the "hand brake" comment, and how it could apply here. I swapped tyres from one of the older vehicles, just for a test..... and guess what ..... the truck moved forward. Although the tyres I swapped over, are also from an older vehicle, they made a vast improvement, so now I will need to buy a number of tyres. Thanks for the help, I will keep you posted on the outcome. I will search ebay for some tyres ?? regards, Hanshi