Where is the crankshaft sensor located in a rover 75?

The crankshaft sensor location on a Rover 75 depends slightly on the engine type fitted. However, it's generally located at the bottom of the engine block, near the crankshaft pulley. You'll likely find it on the passenger side (right-hand side in the UK) of the engine.

To be completely certain, you'll need to consult a repair manual specific to your Rover 75's engine (e.g., a 1.8, 2.0, 2.5 V6 etc.). A diagram will show the exact location. Searching online for "[Your Engine Code] Rover 75 crankshaft sensor location" will likely yield helpful images.