thanks for all the replies to my posting. i got the SEVEN SEATER landy mainly for a couple of reasons , firstly, 4 kids one missus and giant greyhound to cart around and the fact i HATE people carriers. the second reason is im a massive N.H racing fan and it comes in handy when making a quick exit from the mud bath fields that some of the tracks call car parks! . i'll stick with the 18" wheels that it came with. cheers