Vehicle Shudder problems of the 2016 Nissan Versa

Vehicle hesitates when accelerating jerks car when getting speed when going at highway speeds car wanders back and forth hard to keep it on the road , clunking noise comes from cvt transmission when changing gears also produces severe vibrations when car is in motion getting worse and worse have been having these problems since I purchased car 1 year ago at 27,000 miles now have 70,000 miles and car is not very safe to be on the road I have replaced struts hub bearings control arms and tie rod ends along with motor and transmission mounts but the problem keeps getting worse and worse every day. Took it to local dealer and was told they couldn't do anything about it because it was out of warranty. The hertz car rental place that sold it to me was made aware of the problem took it twice to pep boys but I was told they couldn't find anything wrong I've spent about a 1,000 dollars in parts to try and correct the problem but still no luck.