1999 Pontiac Grand Prix Commercial

The Grand Prix is a line of automobiles produced by the Pontiac Division of General Motors from 1962 until 2002 for coupes and 1989–2008 for sedans. First introduced as part of Pontiac's full-size car offering for the 1962 model year, the model varied repeatedly in size, luxury, and performance during its production. Among the changes were positioning in the personal luxury car market segment and mid-size car offering from the second generation to the fifth generation for the sedan and from the second generation to the sixth generation from the coupe. The Grand Prix returned to a full-size car from the sixth generation to the seventh generation for the sedan, positioned below the larger Bonneville in Pontiac's model lineup.

Detail changes marked the 1999 editions of Pontiac's midsize coupe and sedan. New wheel choices were the main visual change this year. The non-supercharged 3800 Series V6 engine gained 5 horsepower (now 200). This was also the last year that the SE model had the optional non-supercharged 3800 V6. GT models received a standard rear spoiler this year. GTP, previously a performance option on the Grand Prix GT, is now a stand-alone model in both coupe and sedan form. The coolant overflow reservoir was relocated from being in front of the intake box to being mounted to the passenger strut tower. Available 16 in (41 cm) alloy wheels came in a new 5-spoke design. The one new option was a Bose 8-speaker audio system.