You bring up an interesting point, and one for which I have no direct data. I'll hunt around for market share numbers per vehicle type, but in the meantime I found these numbers for
overall share by manufacturer/country of origin that breaks down like this:
14.0% Chrysler (up 1.0% in january)
17.3% Ford (down 0.1%)
24.7% General Motors (down 2.5%)
Total share: 57.0% (down 0.6%)
32.3% Japanese Manufacturers (up 1.3%)
4.1% Korean Manufacturers (up 0.3%)
6.4% European Manufacturers (down 0.9%)
Total share: 43.0% (up 0.6%)
A choice quote:
This is all in reference to the levels of dealers incentives and how they affect purchases by end buyers. Domestic manufacturers have had to seriously pony up bucks to keep people buying domestic... and it puts the lie to their claim that the additional per-car 'health care premium' is the main reason they're swirling down the drain:
It's hard to claim that $1-$1.5k in health care-per-car is the main problem when $2-$3k per sale more than japanese automakers is being kicked back to dealers or the buyer. It probably doesn't help, but there's obviously something else at work here. I'd suggest that people are taking that $2-3k price premium as equivalent cash value to lower real or perceived quality of domestic vehicles.
I'll keep hunting for a per class marketshare breakdown, if such a thing exists online...