I am at the end of my rope with this issue. 2008 C70 FWD, 100k miles. Great car, never had a problem. Single owner. 4mos ago started vibration after hitting what I think was a pothole. Vibration notable on acceleration and cornering mostly. When at 70mph, don't feel a thing. Slight vibration on deceleration that quickly goes away.
Took to my mechanic. Not saying all this wasnt necessary but we went through proces of elimination: R Front Tire had balding due to bad axel - replaced R front axel, replaced control arms, rear brakes AND engine mounts...
Still vibrating.

Over to Belletire bought a new R Front Tire. aligned, balanced, etc.
Still vibrating.....back to mechanic

Now mechanice thinks its the wheels, when on the rac, can easily see a wheel has slight deformity. Why Belletire didnt catch, who knows. Had it straightened. Just to be safe, mechanic replaced both axels again (probably after market is my guess both times)
Still vibrating....back to Belletire

Bought a Volvo wheel, Belletire put it on the wrong tire (should have gone on LR, put on RR) that blew my hypothesis to start from scratch and see if it worked, but they changed it out and then put the LR tire on the RF to see if any difference.
Still vibrating....

Have spent $2000 on a book value of $5500 and still have a bad vibration on accleration. This is my main car after a divorce so either have to scrap and start over or find an answer. Ive read alot on acceleration problems on this Forum but all stating items Ive already replaced.

Any help here is greatly appreciated!