SOLD:PROJECT 1984 Porsche 928S EV Race Car - $1000

raypou said:

Good question on the rear steering, I believe so, looks like all the control arms are there. I didn’t do any modification there, but can’t say whether the prior owner did.

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The 928's "Weissach axle" had "passive steering", which means that the toe changes in a planned way in response to suspension forces. As long as it has the stock lower control arms and bushings, this feature is intact.

JustWill said:

All I see I a bunch of spray cats not looking to buy the car, just pick it apart and be internet tough guys. EABOD

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You joined the forum justs to possibly buy a car from someone who joined the forum just to sell the car. You can imagine that you matter... but you don't. It also doesn't matter if the car sells or not, since it's not really being sold by a forum member, so whatever discussion comes up is okay.

remy_martian said:

Is plexiglas street legal for car windows? I didn't think it was.

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It probably is legal. Soft plastic windows were commonly used in convertible tops, and typically I don't think that any side or rear windows are required at all. The legal restriction for side and rear windows would be against using non-tempered and non-laminated glass, since it breaks into dangerous shards. Acrylic (such as Plexiglas®) - or better, polycarbonate such as Lexan® - is sometimes substituted for glass in street-driven competition vehicles (such as this is supposed to be) and I haven't heard of anyone having a problem with it.

remy_martian said:

Agree with Matt that the rear wing is hideous and I'd note that it goes against wanting a low Cd (low drag) that the car body might have offered otherwise.

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The 928 isn't really low-drag; I've seen it listed as

• 0.41 for the original
• 0.38 for the S
• 0.34 for the S4

0.41 is pretty bad and much higher than, for instance, a 924. Even 0.34 isn't low by today's standards.

The wing is not pretty, but breaking airflow away from the unfortunately rounded tail may reduce drag, although it is probably intended to reduce lift (or just to look "racy").

remy_martian said:

Downforce is not free. It gets paid for in drag.

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Lift is not free; it gets paid for in drag.
A bit of a spoiler to make a silly rounded tail into a Kamm tail reduces drag, while reducing lift. If you want to squash the rear of the car down on the ground like a Formula 1 car, that adds lots of drag, induced by generating downforce; in a roadable vehicle, neutral (no lift or downforce) is the best one can reasonably hope for from a spoiler.

raypou said:

...
Replacement plexiglass rear hatchback & quarter panel windows
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View attachment 125637

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remy_martian said:

Is plexiglas street legal for car windows? I didn't think it was.

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brian_ said:

It probably is legal. Soft plastic windows were commonly used in convertible tops, and typically I don't think that any side or rear windows are required at all. The legal restriction for side and rear windows would be against using non-tempered and non-laminated glass...

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raypou said:

It's my understanding it's OK for the rear/sides (technically the material for the replacement is not plexi, it's polycarbonate).
However, I believe the front windshield needs to be DOT approved Auto Glass. The front windshield on the car needs to be replaced. Right now it is Lexan...

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Since the original post didn't mention the windshield and it's not visible in the photo, I didn't address that. I agree that in most (perhaps all) North American jurisdictions an approved laminated safety glass windshield would be required. As long as the windshield frame hasn't been hacked up, that's an easy fix (for a price).

raypou said:

"buy a car from someone who joined the forum just to sell the car. " - I joined and have browsed over the years (since 2016), but never really had anything to post, so not just to sell the car. Came here first as this would be the best place for someone who knows a bit more what they'd be getting into.

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Sorry, I missed the join date, and just noticed the post count.

raypou said:

Really appreciate the discussion though, and thanks for looking!

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Good

You can thank JustWill's post for my increased participation in the discussion. 😁

zapyourrideguy said:

I did a video on this car and the builder. He took an aluminum bodied luxury sports car...

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Although the 928 has some aluminum panels (doors, front fenders, hood, front bumper support), and there are the usual plastic bits (bumper covers, etc), the body is otherwise steel (and it happens to be galvanized steel). There were a few experimental all-aluminum 928's built and raced, but not in production and not for street use. I wouldn't be surprised if the builder told you that it had an all-aluminum body - 928's are sometimes advertised for sale that way, presumably based on either the observation that some panels are aluminum followed by an irrational and unjustified assumption, or just on fraudulent marketing targeting ignorant buyers, but anyone who actually did significant work on the car would know that it's steel.

Rather than "luxury sports car" (an oxymoron), a 928 would normally be called a "grand touring" car.