After many years its time to say goodbye to my 406 exec

, But, I will be replacing her with another low millage diesel estate. The question is, will there be anything I could swap from this one to the new one? seats, stereo, climate etc.
Old car 2001 (d9) petrol, saloon, executive, leather, jbl stero.
new car 2003 (d9) diesel, estate, LX
Cheers
Dan