Buick Park Avenue 1997–2005 car dimensions: 5253 mm long, 1897 mm wide and 1458 mm high. Unladen weight is 1,714 kg. Braked towing is 454 kg.
Automatic dual-zone climate control with rear outlets is standard. Electronic cruise control is standard. Ultrasonic rear parking assist is available on some grades and requires the head-up display. Leather seating, power front seats, and a driver information center are typical. No touchscreen, camera, or advanced lane/blind-spot systems appear in the equipment lists.
Trunk volume is 19.1 cubic feet. The flat floor and low liftover help with loading luggage. A rear-seat pass-through is available for longer items. Seats do not fold to expand cargo space.
Maximum trailer weight is 1000 lbs with a 100-lb tongue weight limit using a dead-weight hitch. The Ultra uses a heavy-duty version of the four-speed automatic. Gran Touring suspension is standard on Ultra and available on other grades for firmer control. The car suits light towing and everyday passenger use rather than heavy work.
The cabin is quiet and spacious with leather-appointed seating for up to six. Dual-zone automatic climate control with rear outlets keeps temperatures even. 10-way power front seats with available 4-way lumbar and memory adjust easily for long drives. Woodgrain trim and thick carpet add a refined feel. Optional power sunroof lets in light.
Base engine: 20 city/29 hwy mpg on regular fuel. Ultra: 18 city/28 hwy mpg on premium.
Oil changes follow Oil Life System monitor or short-trip every 3,000 miles/3 months. long-trip every 7,500 miles/12 months.
NHTSA: 4 stars frontal, side, and rollover.
IIHS: Good on moderate overlap front. Poor on head restraints.
Standard safety: dual-stage front airbags, front side airbags, 4-wheel ABS, LATCH anchors, child door locks, tire inflation monitor.
Available: full-range traction control, StabiliTrak, OnStar, ultrasonic rear parking assist.
The base 3.8L V6 runs on regular unleaded and delivers 20 city and 29 highway mpg. The Ultra supercharged version needs premium fuel and returns 18 city and 28 highway mpg. An 18-gallon tank supports long trips with good range.
Follow the Oil Life System for oil and filter changes. it may go over a year under ideal conditions but requires at least annual service. Short-trip driving needs changes every 3,000 miles or 3 months. Rotate tires every 6,000-7,500 miles. Air filter and other items follow 15,000-30,000 mile marks. Supercharger oil check applies on Ultra at 30,000 miles.
Safety kit includes dual-stage front airbags, seat-mounted front side airbags, four-wheel ABS disc brakes, LATCH child anchors, and rear child locks. Tire inflation monitor is standard. Ultra adds full-range traction control and StabiliTrak as standard. both are available on base. NHTSA rates it 4 stars across frontal, side, and rollover tests. IIHS gives Good for moderate overlap front but Poor for head restraints.
Keep the car with regular oil life resets, tire rotations, and fluid checks. Use the recommended fuels and follow the maintenance schedule in the owner's manual for brakes, cooling system, and belts. OnStar and available parking assist help with daily security and convenience.
Length 5253 mm, Width 1897 mm, Height 1458 mm, Wheelbase 2891 mm (Park Avenue 1997–2005)
Sources: manufacturer data, 2005 Buick Park Avenue brochure, 05-PA-001) and spec sheet 05BUIPARSPE01, 2005 Owner Manual: fuel tank 18.5 gal.