The ZT's conversion was 1500 in 2005 (02 reg). Its done 113k miles now so more than paid for its self. Slight discount on tax too with ours.
(we have had it 7 weeks and only put 30 quid in petrol in it so far. Its usually on lpg within a couple of miles)
Last edited by clairendave; Oct 2, 2015 at 07:02 PM.