The small size of the smart fortwo is the number one reason to buy it – but also the biggest barrier. People think that a car this small can’t be comfortable. To prove them wrong, the agency set up an experiment: guess which car you’re sitting in – and you can win it! Inside a big black box in Hamburg, people were asked to guess in complete darkness. They took the smart for much bigger cars like Mercedes, Volvo or even Bentley. The idea quickly spread online and turned smart.