Its 200 cash my way + the Vectra for the Saxo
To be fair the Vectras virtually immaculate and has been extremely well looked after (i've done 95% of the maintainence on it in the last 2 years of which my mate has owned it) and it drives well but like you said, I always thought my 2.0 SRi was MUCH better on fuel than the last 1.8 I had.
We don't have a big family trip that requires a big car until September so I might just hold out with the Saxo until August time then sell it and use some of the money I get from it to buy a cheap Mondeo Diesel for that. Going to have a proper look over this Vec on Sunday, however.