I also love the narrow rear wheel arches and overal width of the car.
Jays and I measured my car in comparison with his Roadster.
The width of the inside, measured at the door locks, was 40mm narrower.
The exterior width, at the rear wheel arches (from memory) was 180mm narrower.
Finally and regarding the reduced louvres: at the 2009 Centenary, a well known senior MSCC member boasted of the weight saving his fully louvred bonnets had over my bonnet.
