Good choice. I recon normal 133s with cup option is best choice for the Twingo. Means you get 2 sliding and reclining rear seats as opposed to the rear bench. Means you can fit 4 full sized people in with ease and relative comfort.
Thanks man! Non-cup chassis I think, suits me i think, I had a test drive in a 133 on wednesday and loved how it drove, but I wasn't completely convinced due to the interior.
That's when I decided to bite the bullet and spend a little more for the best of both worlds, a gordini 133