Hi Tony
I was at a car/bike show earlier this year and on one of the stands was S.C.C.(SPECIALISED CAR COVERS).If you give them all relevant dimensions or car type they make a cover to suit,but not cheap,about 200 quid(inc vat).Look very good though,waterproof and breathable.Then there is always ARGOS at 19.99
www.carcoversuk.com