Saw one run at the track and it was running 14.2-3's with autocross sticky tires. I looked for nitrous lines when he had the hood up, but could not see anything out of the ordinary. The guy said he just had I/E done to it. Thats all it looked like to me. The car hooked VERY well off the line. I guess the sticky tires helped in that respect. I would think with street tires they would be high 14's IF the driver knows what he is doing.
I would give the edge to the celica, drivers being equal