I finally decided that I should sell my 3 series with a M3 swap. I took me about 2 years to finally make the decision but I like my E28 better as a daily driver. The project was started in 2011 when I bought a complete (front end damaged) 1999 M3. I then found another 3 series of the same color and swapped everything over that was "M" related. (complete powertrain, front and rear subframes, instrument cluster, seats, wheels, front/rear bumpers/sideskirts etc) This car is every bit as "M" as the original except the VIN on the chassis. Runs, drives exceptional. No cels just airbag light because when I first put in the M3 seats the seat belt tensioners were not reset from the crash it was in. The tensioners have been replaced.
https://savannah.craigslist.org/cto/...397521886.html
$7500
Edit.
As for the interior, the M3 was dove and the 323is, is black. The only dove pieces I swapped in are the seats and door cards, the black interior will come with the car.

5sp
Nitto tires (NT05)
M sport weighted shift knob
Soft top replaced in 2015
Bilstein HD rear shocks
Euro style projector headlights
Meghan racing adjustable rear camber arms
UUC flywheel
New gripforce M5 clutch
ECS magnetic oil drainplug
Stainless steel muffler (supersprint knockoff)
M50 intake (oem comes with car)
Garagistic urethane shifter bushings
Garagistic urethane clutch pedal bushings
Urethane rear trailing arm bushings
Solid rubber front control arm bushings
New heater core (2016)
New cowl cover (2016)
New fuel filter @78k
Mobil 1 oil change @83432 mi.+