However, we can compare results from Day 1 2012 to Day 1 2013. Jenson Button was fastest today with 1:18.861 what used to be 1 sec. faster than the best time on Day 1 in 2012 (by Kimi Raikkönen).
Massa does the Jerez test this year as well as he did in 2012. In 2012 his best lap on Day 1 was 1:22.815. Today, he achieved 1:20.536, means he was 2.2 sec. faster. The gap between the fastest and Massa is much smaller this year: +1.675 compared to +3.145 sec. in 2012.
The record lap in Jerez is still held by Michael Schumacher on his F2004 with 1:15.614.