Hi Stig @stigmoltu-jacobsen

I have previously been told, that the gauge I the Convertibles and Cabriolets is still calibrated as if it were in the Coupe’s fuel tank – the Convertible and Cabriolet tanks are smaller though. The net effect is that when our smaller tanks are physically full (almost overflowing) the gauge shows about 3/4 full.

I always carry 1 gallon can of fuel in the 3.6 and 4 litre cars and two 1 gallon cans when using the V12

Laurence