SCCA Starting Line Autocross

First "serious" autocross experience, and first motorsports outing for the Roady. The car pushed a lot more than I thought it would, but it's still fun to drive. My best run of the day was a 33.40X (didn't catch the last digit), which was good for 2nd place out of about 30. The guy who beat me (33.065) was running a race-prepped Mustang that weighs about 200 pounds less and has about 150 more horsepower than my car. I know, I know...excuses, excuses...
Also, the video with data is from a Garmin VIRB that the SCCA provided for us. It's a great concept, but as you can see, the data is way off. Apparently the GPS update rate is only 1 Hz, which is not nearly fast enough for cars traveling such short distances with such high rates of acceleration/deceleration.