It looks like you're new here. If you want to get involved, click one of these buttons!
HHR Future Powertrains?
The current offerings that combine the unfortunate combination of weak acceleration with low-ish gas mileage leave much to be desired.
They should, at the very least, offer a 5-speed automatic instead of only 4-speed auto.
You would get slightly better performance from more closely-spaced gear ratios combined with an extra-tall overdrive gear for quieter and relaxed highway driving at lower rpm and lower fuel useage.