Is there such a thing as a "Bowler"
http://www.bowler-offroad.com/or "Tomcat"
http://www.tomcatmotorsport.co.uk/based around Suzuki running gear?
And what are the tallest available (sollid axle) diff ratios?
I'm thinking of a Suzi-dimensioned spaceframe machine running a small Rover/Honda/Acura engine/autobox combo with the diff in the autobox welded up and car front wheel driveshafts running to axles, with engine in the rear of the vehicle, gearbox in centre, the lot mounted north-south and the driver/passenger just in front of the engine.
Not 100% on the available ratios, but for a 0.75:1 top gear, 4:1 final drive in the autobox, 3.5:1 diffs in the axles and 215/75R15 tyres it should just nudge 60mph before the revlimit in top if I use a 1600 Honda/Acura/Rover engine - ideal for trialling/tight comp safari courses in the UK.