I totally forgot that this car existed until I came across this 2000 Dinan ISR 3 BMW M Roadster for sale out of Park Place Ltd. in Washington state.
I remember reading about this Dinan modified M roadster in magazine years ago and its cool to revisit a car like this over the course of time to see how it compares to today’s cars. Its still fast and is able to run from 0-60 in 4.7 seconds which is slightly slower than a E92 M3.
Dinan really took the M Roadster to the next level by re-working the entire car with the most impressive upgrades made to the engine. Dinan chose to use a supercharged and intercooled combination on the factory BMW inline-6 . The ECU was also re-flashed to accommodate the new Vortech Supercharger and the ISR3 had a output of 396hp which was an incredible 156 additional hp over a stock car.
The suspension was upgraded with a custom set of Dinan/Koni shocks, stiffer anti-roll bars and a huge carbon fiber and alloy strut-tower brace. The differential was also replaced with a LSD unit that put more power to the ground during cornering.
The interior has been finished in a two-tone black and blue color with the Dinan logo embroidered into the headrest. A few guage have been added like the VDO boost and water guage that are mounted to look like factory pieces.
Dinan is known for producing super high quality O.E. like products and even with the extreme power upgrade of the ISR 3 it still carried a full factory warranty. All the upgrades came at a hefty price which nearly doubled the base price of the M roadster.
Only 50 Dinan ISR 3s were built and they added $37k onto the top of a new M Roadster making it a $80k car. This one offered for sale has 27k miles on the odometer and has a much more reasonable $50k asking price.
1-Owner Dinan ISR-3 2000 BMW M Roadster. Outfitted with a completed Dinan ISR-3 Signature Package, this is an ultra-high performance version of the M Roadster. It is a one owner car that is presented in Titanium Silver Metallic over a unique Black & Blue two-tone interior. Only 50 of these ISR-3 M Roadsters were built by Dinan, making them incredibly rare in addition to incredibly powerful. The ISR-3 package along nearly doubles the $45K factory MSRP at a premium of close to $37,000 alone!
The ISR-3 Package, which stands for Intercooled, Supercharged Roadster, adds virtually every high-performance upgrade that Dinan offered for the E36/7 M Roadster. The S52 3.2L inline-six engine now features a Dinan/Vortech belt-driven supercharger that delivers 10lbs of boost, with a Dinan air-to-air intercooler to prevent heat soak. To best utilize the added power from the supercharger, the engine also features Dinan performance software, high-flow intake, high-flow throttle bodies, high-flow fuel injectors and a low-pressure Dinan Free Flow exhaust system. The 5-speed manual transmission is also upgraded with a lightweight clutch and the OEM rear end has been replaced by a 3.38 limited slip differential. The car rolls on lightweight 18″ Dinan wheels and the suspension has been improved with an aluminum & carbon fiber strut tower brace, Koni dampers, performance springs and larger sway bars. All said and done, this M Roadster pumps out 396hp / 326lb-ft or torque in a 3,100lb package that will rocket to 60mph in 4.7 seconds (a full second quicker than a stock M Roadster), pull .91gs on the skid pad and touch a top speed near 160mph.
Factory features of this M Roadster include a premium Harman/Kardon audio system, heated sport seats, optional AM/FM radio with CD player, a sport steering wheel, power-operated blue soft top, roll bars and air conditioning. An optional removable hardtop was ordered with the car (not pictured) and will be included with the car.