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From my own personal *biased* opinion the engine would have to be able to crank ( i.e. not seized), the turbo would have to do the same, hopefully try to fire with the aid of some starting fluid up the intake snorkel. Expect the alternator to be seized, the coolant pump may be in the same boat, a careful inspection of all the plastic vacuum lines for their condition, the coolant hoses would need replacement, etc. Expect to replace ALL of the brake components...calipers, rotors, flex hoses. With regard to the PMIII...the master assembly is mounted to a firewall support that is not the same one used for the non abs system, if one wanted to convert the entire PMIII brake system to vacuum boost one would have to locate a regular non abs car in a salvage yard & go to the effort to disassemble all that is needed to pull that support to install into your project. The chassis would have to be in really good condition, the paint the same......even then, if the powertrain needed an entire rebuild then in reality what you're purchasing is just a rolling chassis & would have to priced as such & the present owner understand that.

There's a 1990 Turbo Grand Prix listed a few hours away that's been sitting in a barn for about 20 years. 130k miles. Cosmetically it seems like it's in pretty good shape (hard to tell the difference between clear coat issues and dust from the photos) but the seller mentions "I think it needs master cylinder rebuilt" and doing some research that sounds like a big problem for these cars... I'm trying to understand what options I may have here and how much of a time and money pit the brakes will end up being. Other known issues are tires, battery, and door handle linkage. I haven't contacted the seller yet but I'm assuming it hasn't been started in a long time, so there's also the risk of discovering other big issues after getting things ready to try turning it over again. They're asking $3500, but looking at the Bring a Trailer auction prices for running ones with less miles plus the brake issue I'm hoping I can talk them down quite a bit.

Being a *TGP* the car will have the PMIII abs system. To repair that will cost you more than it's worth & it was a troublesome system........ is this a southern rust free car? has it been sitting on a concrete pad or in the dirt? if sitting for 20 years expect a mountain of work to put it right..... post up a few photos of the car, especially the underside.

*printer not working* = idiots at the front end there is no camber adjustment, (unless they themselves knew that the shock tower openings were ovaled & moved the strut at the upper end), there's no adjustment for the lower control arms either (the through bolts are a precise fit). The strut bearings do seize up (depending on your geographical environment i.e snow/salt), when they go they will groan as the wheels are turned & the steering becomes stiff, (the techie doing the alignment would see & hear this & should stop the service). Loose rack?..alignment would fail, techie would/should not pass the steering inspection As for variable assist........if your car has it there is an additional valve (electric over hydraulic) mounted to the pressure side port of the power steering pump, easily recognizable, there will be an electrical harness going to it. I take it that all 4 tires are the same size? Last but not least.....do you have a seized brake caliper at 1 corner?