Sega + Crappy games as of late + Losing profits + Someone having an idea about trying to make profit off of crappy game (Crazy Taxi) from another crappy game (Road Rage) = More money than Sega deserves
Sega has been really sucking ass lately, they have been slipping since the post Dreamcast days and they have been in major money troubles since then. I mean, Road Rage came out two years ago, WTF took them so long to sue EA?? That's sad Sega, really sad. You can't steal on idea of a game style unless they directly copy it, maybe if they called it Simpons Crazy Taxi, I see something in that, but come on, really!!
Why don't you get off your ass and start making GOOD games again and maybe you won't have to sue everyone to get some green backs ok??