Just in case just thought I'd shove this Suzuki RE5 video on here. One of the more successful Wankel engined barges. If You never heard of a Wankel engines then smash Your eyes into this wiki entry and then watch this funky oldscule video. I dont know why it failed to take off but It could be down to its totally clumpy blob like appearance. I'd say shove it in modern cars.