...... I never thought much of the Volvo P1800's - they are kind of ungainly looking, mechanically crude with cast iron, 4 cyl, cam-in-block engine, SU carbs, 4-speed trans w/ electric overdrive, solid rear axle .... pretty low tech compared with and e9.....
The Sports Car Market Price Guide lists P1800E's at $9,500 - $17,500 depending on the model and condition, while they show a range of $9,500 - $14,000 for 2800 CS, so I suppose they are roughly comparable in market value. Obviously I'm biased, but I wouldn't think of exchanging my e9 for a Volvo.