The Jaguar was pictured rehearsing crossing the Thames on wires just over an inch thick for launch of new model . Incredible pictures show British stuntman Jim Dowdall practising driving the car across 462,678 34mm-diameter wires . Tonight he will perform feat in full - and it will be broadcast live on Jaguar 's website a week before its official launch .
The Jaguar was pictured rehearsing crossing the Thames on wires just over an inch thick for launch of new model . Incredible pictures show British stuntman Jim Dowdall practising driving the car across two 34mm-diameter wires . Tonight he will perform feat in full - and it will be broadcast live on Jaguar 's website a week before its official launch .