Alterations to its controversial styling and more standard features mark the 2002 Aztek. This minivan/SUV crossover is based on Pontiac's Montana minivan. It has four conventional side doors and a glass rear liftgate in combination with a drop-down tailgate. Aztek offers front-wheel drive or General Motors' Versatrak all-wheel drive. The AWD system lacks low-range gearing and is not intended for off-road use. Front side airbags and ABS are standard; AWD versions add 4-wheel disc brakes. Aztek's unconventional styling contributed to slow sales in its 2001 debut year. The big appearance change for '02 is a revised paint scheme that substitutes body-color trim for gray lower-body cladding. Wheel designs also change and include 3-spoke alloys for the 2WD model. An insulated front-console cooler and CD player are now standard instead of optional. Traction control is optional with 2WD. Other options include heated leather front seats, a slide-out cargo-floor section with storage bins and rollaway wheels, and GM's OnStar assistance system. Available through dealers is a camping package with clip-on tent and fitted air mattress. Maximum towing capacity is 3500 lb. The Buick Rendezvous shares Aztek's underskin design, though it's longer and has three rows of seats.