I just switched from the T1R to the EVO2. Put the exact same setup on the new one. Car feels exactly the same to me. The difference in the chassis for your average stock racer is not that huge.
One thing I did like about the T1R that I didn't realize I liked till I got the EVO2 was the battery mounting. In the EVO2, the battery posts are so close together it's a pain to get the batteries in and out. The T1R was MUCH easier. Not a huge deal but different.
Anyone with an EVO2 that wants to try the T1R chassis give me a shout. I've got one sitting here with a spare set of bulkheads I'm not using.