The Aero is essentially all aluminium.
Whilst at the factory I was told that the tub is made from a "passivated" alloy that is approved for marine use, so won't corrode when used in the winter, even if there is salt on the road.
All the people I know that have aluminium boats have little magnesium sacrificial anodes screwed to the hull, the idea is these corrode before the aluminium. But boats sit in salt water. Our cars don't. Even so I was wondering if there is any need to do more than wash down the Aero when used in the winter, or if such annodic protection might be worth fitting.
Does anyone know for sure? As the Aeros have been about for 12 years or so it should now be obvious if they corrode, or not.
The chassis may not corrode Peter, but the body panels on Aero-bodied Aeros (sounds odd, but you know what I mean) can show corrosion. An odd, but common, place for this is around the circular rear lights where pin-pricks of electrolytic corrosion cause tiny paint bubbles from the inside where moisture can collect. Don't know whether trad-bodied Aeros will have the same issue.
Ps - a sacrificial anode needs to be in an ionic medium to work. So unless you intend to keep your car in a tank when you are not using it, then I don't think this is the answer.
