Hi Guys, Im going to look again at a mint condition 83 300CD Turbo 178,000km's (show room condition inside & out). Everything is original and dealer serviced. Original owner is no longer able to drive due to age / health - it even has original bill of sale!

Anyway, he has simply asked me to make a 'reasonable offer", but im kinda stumped as to what would be "reasonable" seeing as i dont know too much about this series or their values.

Can anyone give me some pointers on where to start.

Thanks