They had bench seats in the back like a Landrover. When the Trekka returned to the junk pile it came from, the fibreglass canopy lived on as a goat shelter. Goats are used to graze roadsides here, and need a shelter, so some little hut is put with them when they are staked at the roadside. A Trekka canopy is the perfect size, and lasts forever.
A couple of my Trekka stories. My mate and I were camping at a beach over Xmas, and I left before him. I got home, and got a call (no mobile phones then). The Trekka had locked up it's gearbox, so I jumped in my International AS110 and headed back up. I hooked it up, and there was a lot of jerking and noises, then he gave a toot and waved me to stop - all sorted, but he had no 2nd gear. When we pulled it down there were no teeth on 2nd gear, the International had sheared them all off.
1972, and I had a brand new Yamaha CT2 175...I'd already smacked it up off road in the first week. On the 3rd week I was riding home from work, turning into a road with houses on the right (we drive on the left) and nothing but a 10 ft deep and wide drain on the left....there was a blue Trekka parked on the left side of the road. I wound the bike out in every gear, redlined in 4th which was 60mph, hooked 5th, and as I went past the Trekka he turned right in to a driveway. I didn't hit the road, flew right over it and the footpath, landing on the grass verge...I just lay there cursing smacking up my new bike again. I tore two holes down the side of the Trekka, about 2 feet long, one from my handlebars, the other from the footpeg. I had a very sore left foot, had it Xrayed, but it was just bruised.