speeding

barreling (or barrelling), belting, blasting, blazing, blowing, bolting, bombing [slang], bowling, breezing, bundling, bustling, buzzing, cannonballing, careening, careering, chasing, coursing, cracking (on), dashing, driving, flying, haring, hastening, highballing, hotfooting (it), humping, hurling, hurrying, hurtling, hustling, hying (or hieing), jetting, jumping, motoring, nipping, pelting, racing, ramming, ripping, rocketing, running, rushing, rustling, scooting, scurrying, scuttling, shooting, stepping, tearing, traveling (or travelling), trotting, whirling, whisking, zipping, zooming