Hi Guys,

I recently purchased a C43 AMG and i am not hearing that much road noise on the regular roads but when i get onto the highway or interstate, i hear a lot of road noise.

Is this some issue with the vehicle or am i experiencing this because C43 is lower to the ground than C300. I can get used to this but since i moved from a C300 (the quietest and most insulated vehicle on highways, regular roads) wanted to know if there is an actual issue with the vehicle itself as i find it unbearable when compare to the quiet C300?

Also my vehicle is a base C43 with a standard exhaust and is that the reason i don't see the exhaust button in the car? See the below image

No exhaust button

What are the specs of the rims and rubber on the C43 compared to the C300?

New C43 is a 2018 vehicle that came with a Pirelli Cinturato P7 with the following dimensions

FRONT

225 /45 R18 95Y XL BSW MB RF

REAR

245 /40 R18 97Y XL BSW MB RF

Old vehicle is a 2015 C300 4Matic that came with a Bridgestone Blizzak LM-32 with the following dimesions

Front and Rear: 225 /50 R17 94H SL BSW MB

Correct on the exhaust button, its only there for the AMG Performance Exhaust.

Thanks. That's good to know.

The CINTURATO P7 is a runflat tyre. We are strongly biased against runflat tyres here. If your car is leased save them for return and get yourself some michellins pilot sports. If bought outright, but the bullet and get the pilot sports. The Blizzaks are winter tyres so a fair comparison can't be made. And you were also comparing a 17" tyre against an 18" which has less rubber on it.

Thank you. I leased the vehicle and will probably drive the car for few thousand miles and put on the michellin's/