Simplify the following text for a Grade 6 native English-speaking person.
Original: Clark 's untimely death â '' he crashed a Formula Two Lotus 48 in April 1968 after his rear tyre failed in a turn in Hockenheim â '' was a severe blow to the team and to Formula One .
Simplified: Clark had a bad crash in a Formula Two Lotus 48 in April 1968 .