Hamilton and Button try their hand at mechanics – Click above to watch the video after the jump

Grand Prix racing sure has come a long way since the old days of driving your car to the track, lining up on the grid and fixing problems yourself track-side. Just how far? Well, the two reigning world champions had to find out the hard way.

In a promotional video for McLaren's title sponsor Vodafone, Jenson Button and Lewis Hamilton were left to hand-assemble their own F1 car, without any help. Shameless marketing ploy? Sure, but that doesn't mean it's not worth a watch, so check it out in the video after the jump, where you'll clearly see a better team dynamic than Lewis enjoyed with Fernando Alonso back in the day.

[Source: YouTube via PistonHeads]