new CDI diesels to appear in SL, SLK-class

[acs power]

I'm curious 'bout the consumption.

[T5]

That´s another issue we will have to discuss in this topic...
Diesel engines are the best in consumption when you are in urban areas with heavy traffic or cruising at average speed.
But,there are some disadvantages for diesel engines....

[chest3r]

3 turbos ?!!?! :shock: :shock: :shock:

This is completly new to me. I know the BMW 535d but it has only 2 turbos.

I like diesel engines. In the last years they have received a lot of technologies. Of course they can't have the sound of a petrol engine but they are quite economic

[Sir_GT]

Originally Posted by chest3r 3 turbos ?!!?! :shock: :shock: :shock: This is completly new to me. I know the BMW 535d but it has only 2 turbos. I like diesel engines. In the last years they have received a lot of technologies. Of course they can't have the sound of a petrol engine but they are quite economic

I don't hate diesels, but like you said, part of a petrol engine's character is the exhaust note, and part of a roadster/coupe/sports car's character is the exhaust note, or the engine, or both. Now the Merc's have lost both.

I mean... isn't a little off? A diesel SL? That's like PRETENDING to be/have bling... which is really pathetic on it's own, but to advertise the fact? Christ. Talk about being permanently stapled to the uncool wall on Top Gear...

[loliea]

I really think that diesel has an edge in the futur of sports car (not super car though: when you can spend $200K on a car, you can afford a 5 m/gal engine).
What about the noise? Their is a big difference between a BMW 330D and a 330i (especially when engine is cold)

[RC45]

Originally Posted by mindgam3 Originally Posted by T5 But why do you want more torque? Are we going to do TT with this cars or what? And remember diesel engines have lvery little rpms.... torque is arguarbly more important than power, torque is what makes the driveshaft rotate, not power.... power only really effects top speed

And sports cars are not about speed?

[Ghostbat]

Originally Posted by RC45 Originally Posted by mindgam3 Originally Posted by T5 But why do you want more torque? Are we going to do TT with this cars or what? And remember diesel engines have lvery little rpms.... torque is arguarbly more important than power, torque is what makes the driveshaft rotate, not power.... power only really effects top speed And sports cars are not about speed?

I think that what he means is that sportscars are about acceleration and handling, don't you agree RC45? The Veyron may go over 400km/h but calling a 2 ton car that can't handle a sportscar, I'm not so sure.

I'm curious 'bout the consumption.

Well 'acs power' it's 7.5l/100km for the 320CDI if you read mv:s first post in this topic.

[T5]

7.5l/100 not in a sporty driving,remember this fact!

[Ghostbat]

Originally Posted by T5 7.5l/100 not in a sporty driving,remember this fact!

Of course not but that's never the case when you measure average fuelconsumption for a car. I'm gueesing even your T5 consumes more than the specified 9.4l/100km when you push it..

[T5]

Ok,but the T-5 isn´t a diesel,it´s a turbocharged petrol engine...something very diferent from a diesel one. :fadein:

[Imre]

If you want to make profit you have to make diesel engines and offer them in every car( from A-class to SL) Maybe it isn`t so in USA but in Europe over 50% new cars sold are diesels.

...now they want to make an economical roadster? Why? Is their target market supposed to be concerned with petrol bills? People bought a Mercedes to SHOW they've made it, not because they were cheap, stingy, and short on cash.

Rich people aren`t stupid.

[Ghostbat]

Originally Posted by T5 Ok,but the T-5 isn´t a diesel,it´s a turbocharged petrol engine...something very diferent from a diesel one. :fadein:

Yes but it's still wrong to complain about the fact that a car consumes more when it's pushed hard, both petrols and diesels do that. Doesn't matter if it's a Volvo, BMW, Merc or whatever. I don't see why these new Merc diesels should be different..

[cooperluke]

T5, you are member of the AutohojeOnline, right??
I think I've seen your avatar there.

Portugal is gaining members here in JW!

About the topic, I don't think that a diesel engine is a good option for a supercar, because the power delivery is less progressive, and the reductions are a bit violent, specially in a car with 700nm of torque. The good points, I think that are not usable in a track!

[mindgam3]

Originally Posted by RC45 Originally Posted by mindgam3 Originally Posted by T5 But why do you want more torque? Are we going to do TT with this cars or what? And remember diesel engines have lvery little rpms.... torque is arguarbly more important than power, torque is what makes the driveshaft rotate, not power.... power only really effects top speed And sports cars are not about speed?

I'm not saying sports cars are about speed, sports cars make u feel good about driving, are good to look at, sound nice and handle well.

I'd take a high revving, but comparatively low torque motor over a high torque, low rev engine anyday.

Diesels do not belong in sportscars, my main reason being the sound, however taking a purely performance stance on the issue, they're becoming ok.

Eg, the BMW X5 ( i know not a sportscar) has a 3 litre diesel and a 3 litre petrol option.... both with exactly the same performance figures

[Ghostbat]

About the topic, I don't think that a diesel engine is a good option for a supercar, because the power delivery is less progressive, and the reductions are a bit violent, specially in a car with 700nm of torque. The good points, I think that are not usable in a track!

I totally agree with you, feels strange that they are gonna put diesels in the Zonda and Gallardo. But remember that these Mercs aren't trackcars so that argument won't hold.