Hi, I have a 98, 406 sedan with a V6 XFZ engine coupled to auto box. What I would like to know does anyone know what engine (other than another V6) can be put in this. I realise any swap would also entail associated engine control wiring & ecu. I know it came standard with 3 petrol options, but has anyone retro fitted a 4 in place of the 6. Would appreciate any information on suitable engines. Thanks Chris