Value of a modded M491 (theoretical question)
 

OK - so I have a fairly stock M491 coupe and am getting the "upgrade" bug. Since I'm poor and can't afford to upgrade the engine, most of my changes would be cosmetic and potentially suspension driven. While most of them would be reveseable, what impact would that have to the value of the car. Here's what I'm starting with:

153,000 miles
Rear seats removed. came w/ home build parcel shelf (don't have original seats - have 930 replacements)
Rear package shelf removed (don't have original - put in RS shelf carpet)
H4 headlights (don't have originals - car had craked H5s when I got it)
Rear Bumperettes removed (don't have)
A/C isn't working
No rear wiper (has switch in dash)
No fog lights (has switch in dash)
Whale tail off of car (base cracked and needs repair)
stock H/E's w/ custom exhaust (Dynomax)
6 way power seats
Stereo delete (wasn't original and didn't work - after mkt speakers in doors)
Rear reflector and reflector panel have been repaired by me

Here are some pics from the recieved from the seller, before I bought it:

http://forums.pelicanparts.com/uploa...1239994616.jpg

And here are some more recent pics, since I've owned it:

http://forums.pelicanparts.com/uploa...1239997162.jpg

http://forums.pelicanparts.com/uploa...1239997223.jpg

http://forums.pelicanparts.com/uploa...1239997258.jpg

http://forums.pelicanparts.com/uploa...1239997283.jpg

http://forums.pelicanparts.com/uploa...1239997304.jpg

http://forums.pelicanparts.com/uploa...1239997321.jpg

Since these pics have been taken, I've removed the dented rear lid and replaced it with a stock, no-tail lid. Most of the rest is unchanged from the pics.

Here are some of the things I'd like to do:

934 or 935 front valance
duck tail (possibly)
remove A/C pump, but leave lines and front condenser
remove rocker panels
replace seats w/ lighter non-power
finish RS carpet in the rear
Carrera or Porsche side script in silver or very dark grey
refreshen suspesion, but if funds allow upgrade t-bars
move the Fuchs 9's to the front and get 11's for the rear
possible lexan rear window w/ flush mount & lexan rear quaters

I'm not expecting to add value to the car, just looking for suggestions and a "value impact" on the car. I don't plan on selling it, but with the current economy, you never know. My primary conern is reducing the value if I needed to do a quick sale.

As long as you do things that are relatively easily reversible that shouldn't be an issue. I say make it the way you want it and enjoy it! Great looking car BTW.

Thanks Michael. I know the factory TL is a somewhat rare car and usually commands a small premium over a standard coupe. I read all the "keep it stock" threads and question my desire to change the car. Granted most of those threads are in regards to long hoods, but I don't want to damage the value of the car. On the other hand, I look at my car as sharing the same M491 option code as the RSR (or was it RS) and the lineage behind those cars - hardly a single one left factory stock.

I'm also open to suggestions on what others would do. I know that's pretty open, but my requirements are:
a fair weather daily driver
kid friendly (working on car seats for the rear)
reversable changes
budget is a factor

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