Honestly, the more I read about Prius SUA the more suspicious I get of the claims. There seems to be one other factor that is common amongst them and that is the drivers are 50+ years old. The vast majority of the SUA claims against Audi in the 1980's were made by drivers 60+ years old.
Oh... and to cast a little doubt on the validity of 90+mph Prius SUA claims:
Prius incident shines spotlight on driver, his finances - USATODAY.com
JP