I remember seeing that car advertised. I like the color combo.. The bench seat would have been the deal killer for me.

Timely discussion for me as I've been struggling with this for three years and now that the car is in process it's time to make the decision. The car is a Build sheet legit ,71' LS5, M22 Chevelle that was born Mulsanne blue with Black stripes. The plan was ALWAYS Black with White stripes.
BUT, the part of me that has been collecting correct numbered thermostat housings and dated evap cannister is laughing at the idea of going that far with a rotisserie resto and painting the "wrong" color.

Previous posts are correct. It's about the buyer when it comes to valuation at the time of purchase.

I do agree that it can be a wash if the color isn't "desirable". The purist purchaser may devalue and walk but the ODDS of someone wanting Black or Blue is higher thus the pool of buyers gets larger...by a lot.

Which takes me back to mine. I really don't like many of the oe colors EXCEPT Black and Mulsanne. Hmmmm.

----Maybe I can help. Black with white stripes is the go to color change for a bunch of cars of all makes and colors. Mulsanne Blue on the other hand was a less chosen color new and way less chosen for a color change (I know that isn't part of this discussion). Choose the blue and you won't be sorry, or at least I wouldn't be as it's a gorgeous color! As a bonus, you won't see yourself coming and going to the cruise-ins......Bill S

Thanks for chiming in, you’ve had some great cars over the years! Correct me if I’m wrong, but weren’t you going to go racing in that car originally and opted to put a bench seat and poverty caps in what was originally a buckets/console/Rally II car? IMO it likely would have brought more interest as a high level restoration outfitted like that versus black in the configuration chosen. Aside from that, the more understated ‘70 GTO’s seem to always suffer “not a Judge” at the auctions.

My own experience...

Many here have seen my Madeira Maroon with bright red interior '67 Chevelle SS convert. For the first thirty years I owned it my intention was to change the color to black. In 2009 it was ready for paint. I woke in the middle of the night in a sweat, "I can't do this!".
About a dozen spray-outs later an acceptable maroon was applied.

I would have very deeply regretted the color change. Mullsane Blue is a great color!! - Bill W

As said, black is an overused color as it is. I bought a 1970 LS5, M22 Chevelle in '73. Black on black, white stripe. BACK then, I thought it was the only color to have. Today ? I don't buy anything black or with black interior. I would walk right by a black car to see your Mulsanne Blue Chevelle. :smile:

Would an interior color change have the same impact valuewise as an exterior color change?

An exterior colour change is far more involved than an interior change say going from black to white. If you want to change the exterior colour of the the car, that would involve a lot of disassembly, painting and work. But anyone that ever looks at the cowl tag will be put off right away because the colour is wrong. The biggest colour change I have ever done is a black to white interior....... simply because it is only door panels and seat covers and a few details. Nothing that requires a trip to the body shop.
My experience is only with 69 and 70 chevelles.
I have 3 70 SS cars and after a few minutes of conversation with people.... they always ask if they are the correct colour. 1 of my cars is a numbers LS5 M22 autum gold car. Do I like gold cars??? Gotta say no, not one of my favorites but would I change the original colour??? No way...
So even if it is not a numbers car, at least the colour is correct.....
As much as you may not like the colour, chances are.... someone else will..... just sayin...

Color change
 

Everyone entitled to their opinion , to my eye all colors at least till GM stopped using lacquer (not sure of the year lacquer last used) but all colors till mid 70’s were awesome from all manufacturers and see no reason to change . Colors that used to be considered undesirable are now the most attractive in many cases .

Durney. You could stick with the original color blue and change the stripe color to white if you like white for the stripes. Then if the next owner wanted the original color back on the car as far as the stripes go, it would be an easy change. I know of an original 71 chevelle that is your blue with white stripes and it is killer!!