Id say summert like a gttdi golf 170,like yah say wi fuel stops etc,& theyre plenty quick enuff,my R1 would only do about 100 miles on the rd on a full tank,or about .7 ltr per lap,when on track @ Donnington,Cadwell etc,a superbike can just do two laps at the TT on a full tank,22ltr, & 38 miles a lap,& run out !!,so id say a Golf,or similar !…