Just had a look at additional pics at Tamiyablog, looks like the TT truck doesn't have much in the way of extra shock travel (although I can't see the lower arms), adjustable turnbuckles for front toe, the smaller / metal dogbone /gearbox out drive setup and the reinforced grey pieces like the drift spec models.

These pics also confirm 3degree alloy rear uprights for the type r, high speed gear set, medium narrow tyres and again the smaller / metal dogbone /gearbox out drive setup...
Still confused as to where the type s and r sit in the lineup.

Cheers,
Crouch