Hi all New to bmw my car is a E53 3.0d sport Le Mans edition 2006, and i have to do a little off roading only into and out of fields with a trailer on. The road tyres are like slicks ,what would be the best wheel and tyre combo . Will a 16" wheel off a E39 fit ? only i have 4 and can put some A/T tyres on. Any help or suggestions would be great Many thanks.