Simplify the following text for a Grade 7 native English-speaking person.
Original: It was a marked improvement over the preceding Japanese Grand Prix , where Vettel crashed into Mark Webber 's Red Bull under safety car conditions while they were running second and third respectively , and Liuzzi lost a potential point after a 25-second penalty for overtaking Adrian Sutil 's Spyker for eighth under waved yellow flags dropped him to ninth .
Simplified: It was a big improvement over the preceding race . At the Japanese Grand Prix , Vettel crashed into Mark Webber 's Red Bull under safety car conditions ( full course yellow ) .