In England, Santa Pod Raceway once sponsored a couple of pure jet dragsters, (plus a track drying lorry with a Derwent!) which used to clear the 1/4 mile in about 8 sec/250 mph. These were TOTALLY eclipsed by Sammy Miller's rocket car which weighed a lot less, its peroxide mono-propellant motor pushing it to 2.5 sec/300+mph!!