I thought someone should write a review that was not based on an immediate car malfunction situation. I have had this 01 Impala with 3.4 for almost three years. I have put 70,000 miles on it. The intake manifold gaskets had to be replaced at about 65,000 $600 (a well known problem by now), the coolant level sensor has gone twice at $55 each, it had the steering shaft issue under warranty and that is it. I have not had to change the plugs yet at 101,000, nor a single light bulb, no oil usage, factory tires went 95,000 miles and the gas mileage is excellent (22C -34 R). I drive it on the interstate a lot. It makes me money at the standard IRS reimbursement rate. I would buy another.
Size and fuel economy
The coolant system, but the 3.4 engine is not available in later models. GM's mistake. Lost some fuel economy.