This wouldn't help with NOX but it would help with all other emissions... and I want a Diesel so I can help our farmers too...

http://www.biodiesel.org/

 

Hard call. My 545i is an aminal, but the 530 d (personal experience, but NOT real back to back driving) I thought had more push at lower rpm's. Better for city driving. On the open road, I would prefer the 545i.

 

I've driven both a 545iA and our 530dA and I really love the nice V8 sound from the 545iA.. The power is almost the same, but the 545iA are quick between 3000-6500 rpm, and the 530dA is so nice between 1700-3500 rpm !

I've just been driving 2000 km autobahn on my skiing vacation in Austia, and the 530dA was amazing at high speeds...

The consumption was low, and the engine only revs 2500 rpms at 170 km/h It rocks!!

 

I believe none of the New England states allowed MB to sell the CDI.

 

here's an interesting link for you guys:

http://www.dieselforum.org/where-is-...s-trucks-suvs/

 

Not true. You can buy them at least in CT.

 

Is this one allowed in the USA ?





The Le Mans Prototype, with over 650 hp and more than 1,100 Newton meters torque, significantly exceeds the power produced by the majority of previous Audi racing cars -- including that of its victorious R8 predecessor. Audi ventures into previously unexplored diesel-engine terrain with the V12 power plant manufactured completely from aluminum. As with the TFSI technology, which triumphed initially at Le Mans before being adopted for mass-production, Audi customers should benefit once again from the lessons learnt in motorsport.

"With the A8 4.2 TDI quattro, Audi already builds one of the most powerful diesel cars in the world," explained Prof Dr Martin Winterkorn, Chairman of the Board of Management of AUDI AG, at the R10 presentation in Paris. "The Le Mans project will help our technicians to extract even more from TDI technology. Nowadays, every second Audi is delivered with a TDI engine. We expect that the percentage of diesel engines will be even larger in the future."

The R10 prototype's V12 power unit, which is equipped with two diesel particle filters, is hardly recognizable as a diesel thanks to the engine's smooth running nature. The TDI engine's specialties presented the Audi Sport engineers with a whole list of challenges. The injection pressure easily exceeds the 1,600 bar achieved in production cars. The usable power band lies between 3,000 and 5,000 revs per minute -- an unusually low rev range for a racing engine. The driver must change gear in the R10 far less often than in the R8 because of the TDI engine's favorable torque curve.

The enormous torque of over 1,100 Newton meters does not only make extreme demands of the R10 transmission system -- even the latest generation of engine dynamometers at Audi Sport had to be re-equipped with special gearboxes capable of withstanding the unusual forces.

Additionally, radical changes to the chassis were also necessary. The Audi R10 has a significantly longer wheel base than the R8. The overly wide front tires are, up until now, unique for a Le Mans Prototype. New technologies were also implemented during the development of the carbon-fiber monocoque. Chassis, engine and gearbox form an extremely rigid, fully stressed unit.

"The R10 project is the biggest challenge ever to have been handed to Audi Sport," said Head of Audi Motorsport Dr. Wolfgang Ullrich. "TDI technology has not been pushed to its limits in motorsport yet. We are the first to confront the challenge. The demands of such a project are accordingly high. Long-term technology partners such as Bosch, Michelin or Shell support us in our quest. Together we have the chance to write new chapters in the history books of motorsport and diesel technology."

The new Audi R10 successfully completed its first test at the end of November. An extensive test program, including the 12-hour race at Sebring (USA) on 18 March, is scheduled before the 24 Hours of Le Mans on 17/18 June 2006. The development team from Audi Sport is supported by Reinhold Joest's squad, which also performed this task during the R8 project.

 

Yes... But not for street use and can not exceed 2500 miles driven per year.

That's very sweet!