yes.. SOLM's law firm representing them when they first brought suit against Toyota in 2005/6 was on standard contingency (%%%), I haven't seen any compensation disclosure for the new firms this second round..
these are tough and VERY VERY expensive cases to plead, as you know, a Goliath like Toyota has limitless supply of capital to fight David..
my guess would be, unless a firm thought SOLM's chances were better than 75%+, they wouldn't touch it on contingency..