Performance is adequate from the 3.1-liter engine, though it feels a little slow initially. The 4-speed automatic transmission changes gears smoothly and downshifts promptly when passing power is needed. We've averaged 20.1 mpg in a Lumina with the base engine, with about half of the driving on expressways. Expect a few mpg less with the stronger 3.4-liter engine. That one has more potent passing punch, but gets louder during hard acceleration. The smooth 3.8-liter on some later models is even more powerful--especially around town. An absorbent suspension on the Lumina soaks up bumpy pavement without harshness or excessive bouncing. Steering in the Lumina is light and has little road feel. As many as six people can fit in a Lumina--though everyone will be squeezed somewhat. There's ample room for four in the Monte Carlo, but a fifth might feel unwelcome. The Monte Carlo requires plenty of room to fully open its wide doors, and climbing into the back seat demands some bending. Thick rear pillars hurt over-the-shoulder visibility in the Monte Carlo, whereas relatively narrow pillars and deep side windows in the Lumina help give a good view to all directions. Dashboards have a clean, contemporary design. Simple controls are easy to see and reach while driving. Trunks in both models are roomy, with a flat floor that reaches well forward.

Value for the Money
The Lumina is a pleasant, competent family sedan, which deserves consideration if you're shopping in the midsize field. Monte Carlo shares most of its pluses and minuses, in 2-door coupe form.