When this 2010 McLaren-Mercedes MP4-25, chassis no. 25A-01, takes the track before the Formula 1 Pirelli British Grand Prix at Silverstone in mid-July, it will represent a return of a veritable chariot, used by inarguably the greatest of our generation’s gladiators, once again operating at full speed, as intended. A champion’s car – or more accurately, a World Champion’s car twice-over – piloted to victory not only by Lewis Hamilton, but also by Jenson Button; the first time in FIA Formula One World Championship history that two drivers who already claimed the title of World Champion were competing together from the opening race.