Agree with the above posts. I have a 3.2, and I average 23-29 mpg depending on city or hwy. Pretty good for a big family sedan IMO. Lots of room inside, still has its good looks, overall nice car to drive. Sporty and functional.
Get a 3.5 engine, they are bulletproof, other than replacing the timing belt/water pump every 100K miles. It is needed for maintenance, and the engine will last forever if you keep that timing belt new.
Transmission failures/problems are quite rare, usually if there is a problem, its the input/output speed sensors, ($50 fix) or in rarer cases, a solenoid pack.
Whoever you talked to obviously knows little about these cars. The 2.7 can be extremely reliable too with meticulous maintenance, they are prone for water pump problems above 80K miles, which is an expensive fix, ($1000), but little else goes wrong with them.
Keep in mind, 10 year old cars with 100K miles or more are going to have issues no matter what the make/model. Struts, suspension/steering components and others are likely to be worn, or close to needing replacement.
Last edited by Daytrepper; 02-20-2013 at 08:55 PM.