Cars sound expensive on the road....let me (try) to explain.
Cars sound expensive on the road....let me (try) to explain.
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PaperCut

Original Poster:

640 posts

170 months

Monday 30th January 2012
quotequote all
Bare with me on this one as not only is it quite difficult to explain (i think!), most will wonder what the fk i'm on about...add to the fact i don't really know what i'm trying to acheive with this thread...

Anyway, you know when a car drives past you - when you're out walking that is - why do some cars have an 'expensive' sound to them. I'm mainly talking about Audis, BMWs, Mercedes, Lexus etc. Now i'm not talking about the engine noise, nor the tyre noise (i think!) the road noise from it rolling down the road (that's not gangsta talk BTW!)

To add contrast to this, a Peugeot or a Ford or most 'mainstream' cars sound scensoredt - i'm not implying they're scensoredt cars!

So, if you know what the fcensoredk i'm talking about and notice this too, is it down to the fact these cars are overengineered and are made to sound like this or is it down to something else - not sure if it's to do with wheel size (or is it!) or the suspension.

And just to point out again it's not the sound of the engine - it's the sound of the road when the car goes past.

TACottle

184 posts

176 months

Monday 30th January 2012
quotequote all
Ok.

Classic Grad 98

26,132 posts

183 months

Monday 30th January 2012
quotequote all
PaperCut said:
most will wonder what the fk i'm on about...
^This.

jimxms

1,635 posts

183 months

Monday 30th January 2012
quotequote all
If we're not talking about noise form the engine, then it can only be the tyre contact with the road surely?

Unless its down a cobbled street, in which case a cheap car might rattle down there?

Classic Grad 98

26,132 posts

183 months

Monday 30th January 2012
quotequote all
are you hearing air suspension?

Grey Ghost

4,608 posts

243 months

Monday 30th January 2012
quotequote all
Classic Grad 98 said:
are you hearing air suspension?
No, just voices I would suspect biggrin

kambites

70,806 posts

244 months

Monday 30th January 2012
quotequote all
jimxms said:
If we're not talking about noise form the engine, then it can only be the tyre contact with the road surely?

Unless its down a cobbled street, in which case a cheap car might rattle down there?
More likely something to do with aerodynamic tuning, I suspect. Or possibly even more likely to be the OP's imagination. hehe

PaperCut

Original Poster:

640 posts

170 months

Monday 30th January 2012
quotequote all
I knew this would go down as an 'epic thread'. Yes i think it must be the tyre noise contact, but why does a Mondeo with big wide tyres not have that sound.

I'm going for a lie down.

NotDave

20,951 posts

180 months

Monday 30th January 2012
quotequote all
OP I get you.

Expensive cars tend to run quieter, smoother, and have big ass wheels making rolling noise.

So, on a brand new CLS or something you hear next to no engine noise, but plenty of tyre roll. And the car sounds heavy.


AS OPPOSED TO


a 3 year old focus tdci with eleventy nine billion miles on it, you hear some brake squeak, a rattly arse deisel engine and less "smoothness"

anonymous-user

77 months

Monday 30th January 2012
quotequote all
PaperCut said:
I knew this would go down as an 'epic thread'. Yes i think it must be the tyre noise contact, but why does a Mondeo with big wide tyres not have that sound.

I'm going for a lie down.
I actually get what you mean. It must be a combination of wide tyres and a heavy car.

PaperCut

Original Poster:

640 posts

170 months

Monday 30th January 2012
quotequote all
NotDave said:
OP I get you.

Expensive cars tend to run quieter, smoother, and have big ass wheels making rolling noise.

So, on a brand new CLS or something you hear next to no engine noise, but plenty of tyre roll. And the car sounds heavy.


AS OPPOSED TO


a 3 year old focus tdci with eleventy nine billion miles on it, you hear some brake squeak, a rattly arse deisel engine and less "smoothness"
I think this is the answer. Thank You.

But the main question is/was do other people notice this? Don't knock it till you heard it hehe

You'll all be doing it next time you're out!

phil1979

3,659 posts

238 months

Monday 30th January 2012
quotequote all
St John Smythe said:
PaperCut said:
I knew this would go down as an 'epic thread'. Yes i think it must be the tyre noise contact, but why does a Mondeo with big wide tyres not have that sound.

I'm going for a lie down.
I actually get what you mean. It must be a combination of wide tyres and a heavy car.
^^^ What he said. I'm with you.

It's definitely a combination of weight, wide wheels, and good damping.

jimxms

1,635 posts

183 months

Monday 30th January 2012
quotequote all
kambites said:
jimxms said:
If we're not talking about noise form the engine, then it can only be the tyre contact with the road surely?

Unless its down a cobbled street, in which case a cheap car might rattle down there?
More likely something to do with aerodynamic tuning, I suspect. Or possibly even more likely to be the OP's imagination. hehe
What ever happened to 'You Bet'? I'd love to see OP distinguish between a collection of cars driven past him while blindfolded. The prerequisite being that they all run the same tyres and all have exhausts and engine bays completely sound deadened tongue out


EDIT: to some of the above, surely squeaks and sounds like that would be more along the lines of "Cars that sound OLD on the road".?

Edited by jimxms on Monday 30th January 15:20

NotDave

20,951 posts

180 months

Monday 30th January 2012
quotequote all
PaperCut said:
I think this is the answer. Thank You.

But the main question is/was do other people notice this? Don't knock it till you heard it hehe

You'll all be doing it next time you're out!
You can basically hear "class" for want of a better phrase.

Case and point...... My snotter VS the SAAB.

SAAB, heavy, big wide wheels and tyres. Barring the derv lump.......... It rolls far smoother, and when on throttle is just a wooshy noise.


The Alfa, light, rattly TSparker.....knocking suspension etc........



New FFRR, new RRS, new mercs etc all sound smoother

Sulli

584 posts

242 months

Monday 30th January 2012
quotequote all
I am with you to a pont OP, but I don't think you can discount or ignore the engine noise. It will either complement the other stuff, or override it. I quietish but purposeful sounding engine that is in 'tune' and smooth will complement the decent suspension and trye noise.

godskitchen

131 posts

170 months

Monday 30th January 2012
quotequote all
I know exactly what the OP is talking about.

A perfect example is the Lexus hybrids used as limos around St Pancras. No engine noise at low speed and a nice rolling roar.

versus

612 posts

171 months

Monday 30th January 2012
quotequote all
lay off the shrooms man

TommyBuoy

1,280 posts

190 months

Monday 30th January 2012
quotequote all
I 'get' what the OP means too, but it really is a combination of all the noises -

Engine / Intake / Exhaust
Tyre Contact Patch / Weight of the Car
Suspension Components
Rattles etc

You can't discount any of those (at least to top 3) and rely on just one as the car wouldn't be moving without making them?

Anyway, I do notice a cars coming up behind me and 'knowing' they are more or less expensive than the last - but not to rain man levels as the OP smile


bamberwell

1,266 posts

185 months

Monday 30th January 2012
quotequote all
PaperCut said:
Bare with me
is this some sort of grooming thread??

kambites

70,806 posts

244 months

Monday 30th January 2012
quotequote all
I wonder if some of it is down to the fact that more expensive cars tend to have significantly better under-bonnet sound insulation so the actual mechanical noise from the engine is much less.