I'm gonna agree with Peter and Musky. The only coils I have seen fail on a Rover are the Accel, both the big yellow box and the pretty chrome ones. I believe they have more ullage and as a result, if inverted, the coils can overheat leading to a sticky gooey mess on the inner fender wells of Defenders. If you shake a stock coil and an Accel, you can tell there are vastly different amounts of oil in themby the sloshing in the Accel, but not the Bosch, nor Lucas.
Go to Napa-they have several suitable replacements for our trucks.