Dishonest underhand tactics

I bought a NEW Suzuki Jimny from Paul Moss at Suzuki Jimny in Bryanston. Paul came to my offices to evaluate the car my car. He came through in an Automatic Suzuki Jimny so when I asked about driving etc he said it would not be the same. I asked him numerous questions and told him exactly what I wanted the vehicle for. He assured me it was the correct car for my needs. I took delivery on 24 Nov and was made to sign a form saying I had been offered a test drive. I drove the vehicle off the show room floor and every time I braked it veered to the right. I put this down to new tyres. The aftermarket radio has terrible quality. When I addressed these issues I was told he would get back to me. After no feed back of a few weeks I was nearly involved in a serious accident yesterday as the highway came to a grinding halt. The Jimny veered so violently left it nearly rolled. I immediately phoned Suzuki to say this was beyond a joke only to be told Paul no longer worked there. The new sales manager then proceeded to accuse me of speeding, of knowing nothing about cars and completely insulted me. I want to go to Carte Blanche as I am one of many complainants with same issues.