I have managed over 600miles in my CDi on two trips to the middle of
France, to the French Smart Club meet at Chateaumeilant, but the average
speed was never over 65mph as I was 'riding shotgun' behind the S2smarts
race truck n trailer combo.
Usually the average is about 350 around town n a bit of motorway driving,
but all done in a spirited fashion if you get my drift