I couldn't remember exactly how much longer these TEs were compared to the standard car, so I looked it up.
The TE is 70cm longer (5.6m) and 260kg heavier. The additional length is all in between the wheels.
I'm guessing (looking at the proportions) that the rear doors must be longer, possibly even modified front doors as they don't have the cut-away for the rear wheel arches? Now you wouldn't want to put a dent in those then!
The spec sheet I looked at says it's a 3-speed automatic, which is disappointing.
Here's a link to some info on what's included:
264 TE brochure. I like the radio volume controls hidden in the rear arm rest!