This 1988 BMW M3 has been given an S52 swap with matching transmission, and though we’re not big fans of the E39 M5 wheels in this context the car looks like a nicely preserved driver elsewhere. Said to have just been completed last month, the swap was donated by a 1999 M Roadster with a claimed 80k miles. From what we can see the install looks clean and the car is said to pass smog with cold A/C and no check engine lights. Find it here on Craigslist in Las Vegas, Nevada for $23,500.