New starter...

...the car failed to start a few times after getting hot - a sign of the starter motor on the way out. So, I popped down to see Paul at Northway's to fit a reconditioned Bosch one (as a new one from Porsche costs an arm and a leg).

Whilst he was at it, he took the opportunity to liberally spray the underside with a healthy dose of Wurth Cavity Wax to preserve those parts and nooks & crannies exposed to the elements. The wax isn't completely clear but it is better than the black wax oil that is also available - which to some suggests you're trying to cover up corrosion as opposed to prevent it - so best to be honest and as transparent as possible. The car is originally waxed from the factory in a dark beige colour for some reason so the light beige Wurth product is the closest match. 

Prevention better than cure, I'd say. A coat once a year before the autumn / winter months is recommended, especially with the old cars. 

Thanks Paul.