Complex sentence: This new material reduced the weight of the car and thus improved its performance, however the car lacked the more efficient state-of-the-art disc brakes featured on the rival Jaguar D-Type, employing instead the traditional drum brake system.
Split into simpler sentences: This new material reduced the weight of the car and thus improved its performance. However, the car lacked the more efficient state-of-the-art disc brakes featured on the rival Jaguar D-Type, employing instead the traditional drum brake system.