Ian -- I concur that the term 'package' is a new one to me. Maybe the seller is trying to wow you with some attribute of this particular car?

Volvo was one of the earliest car makers to utilize the oxygen sensor system for emissions control. Just about every other car got on the bandwagon by the early 80's with similar systems. By 1980, all (domestic) Volvos should have had the system. For your '80, I believe, it includes the oxygen sensor (in the exhaust manifold), a control unit (behind the kick panel in the passenger side leg well), a relay by the battery, and a 'frequency valve' in the fuel line which makes subtle adjustments in the fuel pressure. On my '81, it lives near the front of the motor, directly in front of the big rubber air bellows.

On the surface, $2500 seems pretty high. Depending on mileage, presence or absence of rust, integrity of paint and the interior components like the seats, carpets, and dashboard, documentation of regular maintenance and repairs, prices for early 240s typically range from <$500 to ~$1800. Some sellers have an inflated opinion of the worth of the vehicle they're trying to sell. In Sept., I purchased an essentially rust-free '87 244 with 160k miles for $1500.

I'd suggest tapping into the Brickboard classifieds, the IPD classifieds, and the Volvo Classics Online classifieds for several days to get a feel for typical asking prices for 240s. If you can objectively document what similar cars are *really* selling for, this seller should lower the asking price.

Good luck!

Rob