and quite plunge it was as the system cost was a quite a bit more than the purchase cost of the car, 1600 euro, around 2000 $.
Sounds steep, but if i had fitted it when i bought the car 13K miles ago, it would have payed for itself already with the current petrol prices round here.
gas bottle takes the place of the spare wheel and the system is digitally controlled with a separate ECU that interfaces the stock ECU. Essentially the car is now bi-fuel, will switch to petrol when the LPG runs out automatically.
The filling port was put under the normal fuel door, at the station i need to screw the silver adapter to fill.