Original sentence: A special edition Rover 200 was produced to commemorate the Rover-BRM gas-turbine car; this was finished in Brooklands Green (however not the very dark metallic gunmetal BRM shade) with an orange lower, front grill and silver details
Edited sentence: A special edition Rover 200 was produced to commemorate the Rover-BRM gas-turbine car; this was finished in Brooklands Green (alas not the very dark metallic gunmetal BRM shade) with an orange lower, front grill and silver details