Murray Walker Credit: Gray Mortimore/ Getty Images Murray Walker, who has died aged 97, was for more than half a century the high-octane voice of British motor sport and a consummate exponent of – and, indeed, with a strong claim to have invented – the “pants-on-fire” school of broadcast commentary. At full throttle at the television microphone for a Formula 1 grand prix, Walker would typically let rip with what he called his “crash, bang, wallop” approach, developed during years of commentating on low-budget motocross and rallycross competitions. “I reacted excitedly and enthusiastically to their drama, speed and aggression,” he remembered, “and when I moved full time to the more sophisticated tarmac racing I took my whoops, expletives, shouts of amazement and malapropisms with me.”