All Bonnevilles come with 3.8-liter V6 engines. The SSEi gets a supercharger that boosts engine power to 240 horsepower. The SE and SLE have a normally aspirated (non-boosted) version of the same engine, which produces 205 horsepower. Performance of all three models is good, although most driving enthusiasts will appreciate the extra oomph of the supercharged SSEi.

Base SE includes a comprehensive list of features that will suffice for the majority of potential buyers. Standard equipment includes a four-speed automatic transmission, air conditioning, tilt steering wheel, power doors, power windows, power mirrors and a reasonably good AM/FM stereo cassette system.

SLE adds a leather-wrapped steering wheel with redundant audio controls, dual-zone automatic climate control, 6-way power driver seat, remote keyless entry, an upgraded sound system, tire pressure monitor, alloy wheels and a performance suspension.

SSEi pushes the Bonneville into near-luxury segment price territory. But for this price, the buyer gets the supercharged engine, traction control, improved magnetic variable-assist power steering, leather upholstery, 12-way power seats, a head-up display, Bose stereo system, automatic mirrors and a universal garage door opener.

Many of the standard features on the more expensive models can be ordered as options on the lower-priced models.