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View Full Version : Comparing 3l TDi A4 with RS4



54A4Avant
15-09-2012, 02:16 PM
Hi all. There's a small chance I might be in a position to buy a nicely specced new Audi next year and so I've gone into dreamer mode and started playing with the configuration tool on the Audi website building myself some nice cars to choose between. Finding the money might be another issue, but we'll leave that to one side for a minute.

What I noticed was that although I was initially drawn straight to the RS4 due to all the sporty bells and whistles, the performance figures for torque compare really badly to the 3.0 TDi engine in the A4 range. So for the RS4 peak torque is 430Nm up at 4000 to 6000 rpm but for the diesel engine the torque is 500Nm at a far more accessible 1400 to 3250 rpm. I'm no expert but im guessing this means that in everyday driving the diesel A4 is more likely to have instant "get up and go" available more often when you boot it, instead of having to wait for the V8 to wind up in the RS4. Oh and the diesel A4 has almost double the mpg of the RS4 and costs about £15k less when loaded up with the bells and whistles.

So, umm... I'm wondering why I would buy an RS4 - apart from the boy racer appeal of that badge and styling..? Thoughts?

turpal
15-09-2012, 03:56 PM
Diesel torque comes in earlier than powerfull petrols and it is there when you need it the most also if you get it mapped it will last to a higher revs not to mention an mpg.

Longdog
15-09-2012, 05:40 PM
You can't compare the 2 cars, the 3.0 tdi A4 is a great car with a great engine but it's no RS4 (or S4) beater, people buy them for different reasons and normally it comes down to money.

zollaf
15-09-2012, 06:36 PM
test drive them both and decide.

54A4Avant
15-09-2012, 08:05 PM
Thanks guys. Now my eye has been caught by the bi-turbo A6 3.0 BiTDi... Prodigious torque and more refined cabin. Not sure I like the idea of tiptronic gears instead of the RS4's S-tronic though...

54A4Avant
15-09-2012, 10:39 PM
Ok, having looked into things further, it seems the S6 hits the sweet spot - twin turbo 4l V8 - 500Nm of torque thru most of the rev range. 30mpg thanks to switching to 4 cyl mode when pootling and it has the gorgeous A6 interior and S-tronic gears. Surely the best of all worlds!!

turpal
15-09-2012, 11:40 PM
You best to test drive and feel the car not the figures the telling you.

c.grex
16-09-2012, 08:33 PM
Ok, having looked into things further, it seems the S6 hits the sweet spot - twin turbo 4l V8 - 500Nm of torque thru most of the rev range. 30mpg thanks to switching to 4 cyl mode when pootling and it has the gorgeous A6 interior and S-tronic gears. Surely the best of all worlds!!

All your comments sound like one of my car dreams! RS4's to BiTurbos to RS6's......

54A4Avant
17-09-2012, 09:09 PM
Yeah... It's nice to dream, huh? So many nice audis, so little money ;)