Thanks again shytalkz for the comprehensive reply.
The company accountant has also factored in the Personal BIK advantage when doing the maths, i.e based on the bmw520 at say approx list/co2 £27,000 x 18% = £4860 x 40% = £1944/£162 pm, also factored in, is the free fuel BIK, £16,900 x 18% =...