The tridion safety cell is the most important safety aspect of the smart fortwo and took eight whole years to develop. It's basically a triple-layered steel cell that the rest of the car is built around. Providing incredible protection during a collision.

To test its strength, we thought we'd whack a fortwo with an industrial wrecking ball. We were so confident in the tridion safety cell that one chap even elected to sit inside while the car was pummelled. Of course, he was absolutely fine as the wrecking ball bounced off with minimal damage.

Pack in a wealth of Mercedes-Benz safety technology on top, which you'll read about in the features section, and you'll see why the smart fortwo proudly wears 4 EuroNCAP safety stars.