I need a bigger car to replace my Astra, so a Vectra Estate is top of the list, probably in Elite trim with auto transmission.

I need more economy so the 1.9CDTi (150) is the obvious choice.

However, the 2.8T is quite economical when the lower cost of LPG is taken into account.

On paper, it's a no-brainer 2.8T+LPG > 250bhp/350Nm/42.8mpg compared to the 1.9CDTi > 150bhp/320Nm/40.4mpg despite the £2000 conversion cost.

Has anyone done it, what's it like to drive?