GM's numbers, '09 over '08...
DOWN 30%
And for the year:
2009 total sales 2,084,492
2008 total sales 2,980,688
a difference of -30.1%
Toyota,
DOWN 20% '09 over '08.
IIRC, the total market, '09 to '08, was
DOWN about 21%.
With those "conclusions", no doubt GM was
DOWN Market Share, '09 over '08.
EDIT: 2009 vs. 2008 Sales...
http://www.usatoday.com/money/autos/...es_N.htm#chart