When Ueli Anliker of Switzerland decided to give his car a makeover, he spared no expense. The paint job alone contains 5.5kg of pure gold and his McLaren SLR is also adorned with hundreds of rubies. He was just one of the extreme tuners at the MyCar show in Dortmund. A new trend this year was cross-tuning with original parts.But what happens when tuners cross a VW Golf with a SEAT, or a Skoda with a Lamborghini. drive it! takes a look at the results.