Complex sentence: In 2007, he raced in the German Mini Challenge VIP car at Oschersleben, but, after a strong performance in the first race, he rolled the car on the second turn of race two.
Split into simpler sentences: In 2007, he raced in the German Mini Challenge VIP car at Oschersleben. After a strong performance in the first race, he rolled the car on the second turn of race two.