It's a bottom of the barrel M5.
It's a train wreck.
By the time you fix everything and make it proper, you'd be in the mid teens and could've gotten a clean, unmolested example to begin with.
There's no such thing as a cheap, clean M car.
'02 ///M5 Imola Red / Imola Red '09 335i Alpine White / Coral Red
'04 E55 AMG Brilliant Silver / Anthracite
'96 318i Alpine White / Black
'01 330Ci Titanium Silver / Coral Red
'96 328i Jet Black / Black