← Buick Park Avenue / Lucerne · 1997-2005 · G-body K

Buick Park Avenue / Lucerne Park Avenue (1997-2005)

Final Park Avenue. Supercharged Ultra (240 hp) is the cult pick. FWD luxury sedan.

Verdict
C
BHP
205-240 bhp
0–60
7.5 s
Top speed
125 mph
MPG
21.0 mpg
Used
$3,500-$9,000

G-platform K-body architecture. L36 3.8L Series II V6 NA (205 hp) base; L67 supercharged 3.8L Series II V6 (240 hp / 280 lb-ft) on Park Avenue Ultra trim. 4T65E four-speed automatic. FWD only. Magnetic Ride Control optional. Standard equipment included full leather, dual-zone climate, Bose audio, traction control. 'Ultra' badge denoted the supercharged engine plus extra trim, monitor instrumentation, and revised suspension. Production at GM Detroit-Hamtramck (Hamtramck Assembly). The Park Avenue's role was the traditional 'big American luxury sedan' — comfortable ride, isolating cabin, no pretensions toward European sportiness. Replaced by Lucerne for 2006. Now affordable used; Ultras command a small premium.

Strengths

  • Supercharged L67 V6 on Ultra trim
  • Comfortable cushy ride
  • Magnetic Ride Control optional
  • Cheap depreciation-bombed pricing
  • Reliable 3800 V6 architecture

Weaknesses

  • FWD only
  • Four-speed automatic dated
  • Intake manifold gasket failures (3800 Series II)
  • Cabin tech now 20+ years old
  • Big-car proportions feel unfashionable now

Notable tech

  • L67 supercharged 3800 Series II V6 (Ultra)
  • Magnetic Ride Control optional
  • 4T65E four-speed automatic
  • Bose audio standard
  • Traction control standard

Common issues

  • Intake manifold gasket failures
  • Lower intake plenum cracking
  • Power window regulator failures
  • Climate control HVAC actuator failures
  • Magnetic damper actuator failures (when optioned)

Used-market budget

$5,500

Base V6 cars $3.5-6k. Ultra (supercharged) cars $5-9k. Documented intake gasket service is critical.