Original sentence: However, Mansell finished fourth in the Championship with the help of a memorable second win for Ferrari at the Hungarian Grand Prix, where, after concentrating on the race set-up of his car, he won after a late-race pass on Ayrton Senna after starting only 12th on the grid.Mansell believed that 1989 would be a development year and that he would be able to challenge for the championship the following season.The rest of 1989 was characterised by gearbox and various other problems which included a disqualification at the Canadian Grand Prix and a black-flagged incident at the Portuguese Grand Prix for reversing in the pit-lane, which resulted in a ban for the next race in Spain
Edited sentence: However, Mansell finished fourth in the Championship with the help of a memorable second win for Ferrari at the Hungarian Grand Prix, where, after concentrating on the race set-up of his car, he won after a spectacular late-race pass on Ayrton Senna after starting only 12th on the grid.Mansell believed that 1989 would be a development year and that he be able to challenge for the championship the following season.The rest of 1989 was characterised by gearbox and various other problems which included an unnecessary disqualification at the Canadian Grand Prix and a regrettable black-flagged incident at the Portuguese Grand Prix for reversing in the pit-lane, which resulted in a ban for the next race in Spain