Turn key lights and guages work but wont start or turn over

Auto or manual, when it wont crank on the key, you will have to check for power t the starter solenoid, you should have 12V at the small wire with key on crank, if this is so and still no crank, the starter will be faulty, if no power at that wire, may be ignition switch, trans isolator switch if auto or clutch switch if fitted to system (that is if you have to have your foot on the clutch to start car) or a general wiring fault or faulty starter relay.