Complex sentence: It is suggested that the car was a prime reason for Bentley Motors going bankrupt, but when on Rolls-Royce bought the company in 1931, it immediately disposed of all 8-Liter spare parts.
Split into simpler sentences: It is suggested that the car was a prime reason for Bentley Motors going bankrupt. When Rolls-Royce bought the company in 1931, it immediately disposed of all 8-Liter spare parts.