I was looking for a car with good gas mileage and enough room inside for my 12 year old son who is now 5'11 1/2" tall. He needs room to grow over the next 3-4 years of anticipated ownership and is supposed to end up about 6'6" tall! We checked out a variety of cars in the similar class, with fuel efficiency & cabin size being the #1 priorities. Not only does the Aveo offer ample headroom and decent leg space for a compact car, but it's paying for itself! The reduced insurance cost, improved gas mileage and decent styling led us to this car. Our former car was an Xterra, and there is as much interior cabin space in this tiny Aveo as we had before - but more then twice the MPG's.
Interior head room, trunk space, tightness of the suspension, superior handling, fuel efficiency (we drive 120 miles a day round trip and are definitely seeing an average of about 32 mpg) and overall appearance.
Softer seats, definitely softer seats! Also, it would be nice to have a power lock mechanism inside the car.