The most noticeable change for the 2007 GMC Canyon midsize pickup truck comes in the form of more powerful 2.9 L, 185 hp 4 cylinder and 3.7 L, 242 hp 5 cylinder engines. GMC also changed the transmission speed sensor and added a tire pressure monitor. As for aesthetics, the '07 Canyon incorporates new chrome trims and offers a choice between 15 and 18 inch wheels. All told, the Canyon features a whopping 26 trims. The trims come in three general groups: crew cab, extended cab, and regular cab. Regular cab trims seat either 2 or 3 and have 2 doors while the crew and extended cabs have 4 doors and seat anywhere from 4-6 passengers. The extended cab has a 6 foot bed while the crew cab has a 5 foot bed, leaving more room for the interior. Expect to get 17 mpg in the city, 24 mpg on the highway on average. According to the experts, the 2007 GMC Canyon offers smooth handling and one of the best 5 speed manual gearboxes in its class. However, the Canyon lacks the power, performance, and refined materials needed to cement a strong reputation for a top pickup. GMC has some work to do before reviewers desist from describing its Canyon as anything but grand.