accessed from inside the glove compartment. For 2001, the Montana received a new steering wheel with the Pontiac logo which replaces the one with the PONTIAC letters. For 2003, the sport-style head restraints were dropped in favor of the conventional head restraints the Venture and Silhouette offered; and the anti-lock brakes became optional as well as for the Venture, but remained standard for the Silhouette before the demise of the Oldsmobile brand in 2004. The Montana Thunder was the most up-level model of the Montana. Introduced in 2002, Thunder featured special "Thunder" badging, Thunder-specific 16" chrome 5-spoke wheels, upgraded ride and handling package, and a special spoiler on the back of the roof rack. Inside, the Montana Thunder had special two-tone black and grey leather seating, and a perforated leather-wrapped steering wheel. The Montana Thunder was produced in 2002 and 2003, but for 2004 it was made an optional package on Montana GTs called the "Chrome-Sport" package. Only the "Thunder" badges were discontinued. Despite the Pontiac Montana's redesign in 2005, Pontiac continued to sell the original body style for the 2005 model year for fleet use. The last Montana rolled off the production line on March 31, 2004. Safety criticism A crash test video of the 1997 Trans Sport/Montana conducted by the Insurance Institute for Highway Safety (IIHS) resulted in some criticism due to extreme damage to the vehicle in the moderate overlap crash test. The minivan received a "Poor" rating and was ranked the "Worst Performing Vehicle" by the institute as a result. Some comments made by the IIHS after the first test in 1996 were: Major collapse of the occupant compartment left little survival space for the driver. Extreme steering wheel movement snapped the dummy's head backward. The unnatural position of the dummy's left foot indicates that an occupant's left leg would have been seriously injured in a real-world crash of this severity. The forces on the left lower leg were so high that the dummy's metal foot broke off at the ankle. The safety issues of the Trans Sport/Montana were later addressed with the Montana SV6, which earned the highest rating of "Good" given by the institute in the frontal offset crash test. The National Highway Traffic Safety Administration gave the van 4 stars for driver protection and 3 stars for passenger protection in the frontal impact test. In the side impact test, it received 5 stars