The Way to Dusty Death by Alistair MacLean

As a colleague burns to a cinder while trapped in the cockpit of his blazing machine, Johnny Harlow, world champion racing driver and apparent cause of the accident made a far-reaching decision. Too many things had been going wrong in too many races, and this latest death made Harlow realise that the time had come to sort things out. Some sharp and aggressive detective work shows Harlow that there’s plenty of trouble stirring beneath the busy exterior of the racing scene, and that there are one or two people who will stop at nothing to prevent him discovering the details. 

But like a cat in the night, using silence, stealth, and the art of camouflage to ruthless perfection, Harlow stalks his targets, and when the time comes to declare himself he strikes with lightning speed and devastating effect, leading finally to a hair-raising car chase before the last of his victims is silenced for ever.