If there were any doubters who thought the 2007 Toyota Tundra wouldn't measure up to its domestic competitors, the 2007 Tundra CrewMax stands ready to crush them under the weight of its massive cab. Larger in some respects than the already monstrous Dodge Mega Cab, the four-door Tundra CrewMax may get credit for introducing the term "square footage" to the full-size truck segment.

Along with its nearly 4 feet of legroom in back, the CrewMax offers seats with 10 inches of fore and aft adjustment and the ability to recline to 41 degrees. Both are firsts in the crew-cab segment. And when you don't need quite that much passenger room, the seatbacks fold flat exposing four additional tie-down hooks. There's also an extra compartment behind the seats for storing smaller items.

Apart from its generous passenger accommodations, the Tundra CrewMax is similar to the slightly smaller Double Cab in most other respects. The base engine is a 4.7-liter V8 hooked to a five-speed automatic. With 271 horsepower and 313 pound-feet, the 4.7 should be good for most light-duty towing. Heavy-duty users will want to upgrade to the top-of-the-line 5.7-liter V8 with its 381 horsepower and 401 pound-feet of torque. It gets a six-speed automatic transmission and a maximum tow rating of 10,400 pounds on two-wheel-drive models.

Like most half-ton crew cabs, the CrewMax is only available with the shortest (5.5 feet) of the Tundra's three bed lengths. That gives it a wheelbase of 145.7 inches, which is only slightly longer than the Chevrolet Silverado crew cab (143.5). The CrewMax is also restricted to the midgrade SR5 and top-of-the-line Limited trim levels. That means you're looking at spending at least $30K on the CrewMax when it goes on sale this spring.