2010 Chevrolet HHR SS 4dr Wagon (2.0L 4cyl Turbo 5M)
I ordered a 2010 HHR SS with the AA5 (no rear quarter windows), sound system, performance package. I am blown away by the performance. It'll do 150 mph. I've had it up to 118, and it wasn't even breathing hard. It handles "as if on rails." Seats are very comfortable, even on long trips, and I make many of those. It has enough space for all my equipment. Sound system is good, not great. I would install a custom stereo system on my next vehicle. The factory tires are wearing like iron. But the best feature of all is the mileage - I'm averaging 28.5 mpg. All in all, it is almost the perfect vehicle.
Excellent performance / handling / gas mileage
The "Premium" Pioneer stereo is just average. More wattage, better speakers, larger sub-woofer would be a big improvement.