2/3 Can someone explain to me why no car mfgrs. produce a sports car
with a turbodiesel? I rode in a friend's A6 TDI, not a small auto,
which went like shit off a shovel. Just curious. -John
\_ Probably because not a lot of people like diesel, it's not even
economical anymore. Plus a sports coup with a turbo diesel would
probably not meet emmission standards, after all, diesel is
dirtier than regular unleaded.
\_ I think we've had this discussion before, about diesel vs. gas.
We're not talking about a diesel tractor engine, but something
like a CRD or TDI with particle burner, which runs very clean.
As far as I can tell, the main differences between a sports car
and small high-end coupes are the chassis, suspension, gearbox
and maybe performance tweaks to the engine, but not the
fundamental engine (i.e. where in between BMW 316 and M3 CSL
does it become a "sports car"?) Anyway, after some research I
found the C30 AMG. -John
\_ I _have_ heard that acceleration is one of the disadvantages
of diesel engines, but I am not an engine expert by any means.
-- ilyas
\_ Sure you can probably get diesel to be as clean as regular
unleaded. That's not really the point. The point is, why
bother when diesel is as expensive as gas for the end-user.
Plus, it would cost more to maintain since you'd have to
get special parts for it, etc. Diesel tanks also corrode
over time with mold/bacteria/etc. There are reasons why
diesel never became popular in the U.S. for consumer level
vehicles, and why it's still not necessarily as popular as
it could have been in Europe.
\_ Provincial fool! You're talking to Eurojohn. Euros love diesel.
Diesels tend to generate tons of torque but not too much HP.
But gas engines still get better performance for a sports car.
They can build the engine lighter and run higher rpms without
blowing up. And they sound cooler. Sports cars don't need to
pull stumps. A turbo gas engine of the same displacement would
probably go like even faster shit off a faster shovel.
\_ Related, are there any manufacturers besides VW selling TDIs in
California? I was very interested in one but I've nixed those plans
on account of VW's quality problems. TIA.
\_ Heil Eurotrash John!
\_ For one thing, diesel engines usually require more space to
generate the same HP as regular engines. Secondly, new
technologies such as the Accord Hybrid prove that motors
in fact generate a lot of torque which really helps you
get to red-line quickly even if your engine is starting
from near-idle speed. The new Accord Hybrid engine is small,
goes 0-60 in 6 seconds, is less than $30,000, and has 37MPG.
I doubt conventional diesel technology has all the
combinations of form size, torque, mileage, and price range
offered by hybrid technologies. |