When I turn the ignition on - before starting no ancillaries on- the car's voltmeter reads 8-12, on starting this rises to 12-14. Is this normal? Is the battery kaput, and the voltage only being held up when running by the alternator? Clues please? Also I'd like to register my daughter as the youngest lister with her silver sport quattro (well mini quattro!!) at 11 months old!