The BMW E39 5 Series will definitely go down in history as one of the most iconic cars ever built by the Bavarians. It will take its place in history alongside the Neue Klasse models or the original M1, and rightfully so. Furthermore, the E39 M5 is starting to gain traction among collectors, and prices are definitely on the rise for mint models. The S62 4.9-liter V8 of the M5 is a beautiful work of art and while this one editor prefers it over a host of other legendary engines made by BMW, a lot of people out there desire more an inline 6-cylinder since that’s the bread and butter of BMW. Therefore, if you’re looking for an E39 with a straight six engine with plenty of grunt to get you out of a hairy situation in a hurry, this might be the one for you.

00z0z cP0Vx7weG9Y 1200x900 750x563

Under the hood of this car hides a 3-liter inline 6-cylinder that came from a ZHP E46 330i. However, instead of keeping it stock, the owner decided to supercharge it with an ESS twinscrew kit to make sure that there’s no shortage of power or torque. The end result is a BMW 530i with 440 HP and 400 lb-ft (542 Nm) of torque at its disposal, to do with as you may please. That’s considerably more than what the E39 M5 used to make.

Along with the new engine, the car was also fitted with a host of other upgrades to justify the $19,500 price tag. Things like a Dinan replica cold air intake, UUC lightweight flywheel, kevlar clutch and short shift kit as well as the M5 differential and axles along with the Brembo GT brakes, M5 exterior kit and the reworked suspension all added up to a hefty sum when they were purchased.

00D0D daYCdZLV3GR 1200x900 750x563

According to the seller, the work the supercharger along with the brake kit and differential set him back $15,000. The Bimmer is located in Kingwood, Texas and it does seem to be a steal if all the info on the Craigslist ad is true.