Complex sentence: While the car had good performance it was expensive to produce and the overall fit and finish was not competitive with that of similarly priced models from mainstream manufacturers so that production ceased in 1960 after around 325 examples had been produced.
Split into simpler sentences: While the car had good performance it was expensive to produce and the overall fit and finish was not competitive with that of similarly priced models from mainstream manufacturers. Production ceased in 1960 after around 325 examples had been produced.