The Convoy trailer can haul 110lbs or two kids, provides electric assist, and even steers itself – and then stores away easily.

Built from CNC-machined composite panels, the CapsulBike trailer stands at 4.6 feet (1.4 m) tall and stretches double that for a length of 9.2 ft (2.8 m). At 152 lb (69 kg), it definitely sounds ...

The trailer is 2 meters (6.6 feet) long, 0.76 meters (2.5 feet) wide, and 1.37 meters (4.5 feet) high, and according to Darache, it's very stable on the road. It also goes wherever the front ...

The Expedition Trailer, for one, starts at CHF 8,000 (approximately $8,900 at the current exchange rate), with a unit like either of those shown in the gallery going as high as CHF 13,100 ($14,600).