On the subject of the intake air I can't help but think that if the bonnets were a little shorter and the shuttle top extended a little further forward that the intake for ventilation could be in the top of the shuttle and better isolated from the engine bay heat. It would need some trick system for sliding out the air filter for cleaning and/or replacing but that would not be difficult.

I can't help feeling that for several reasons, if I was ordering a new car or replacement bonnets, I would not get top louvres, I would only order side vents, and a scoop on the inlet side (perhaps even both sides for symmetry). Clearly the exit of hot air (pushed by the radiator fan) in front of the intake of the cabin air is problematic, and that is without taking into consideration the gap in the foam around the bonnet hinge.

Actually if I was re-designing the shuttle top I would also move the wiper spindles and change the degrees of rotation. the idea being that the blade should finsh vertical against, or close to, the driver's side windscreen pillar and park flat pointing to the passenger side. This would maximise the driver's clear view in rain.

Peter

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