I purchased a 2004 Nissan 350Z in septmeber of 2003. After about 12000 miles I complained of excessive road noise comming for the tires. I was informed by the dealer that the front tire were cupping and had to be replaced. This seems to be a known problem with this car and Nissan acknowledged it on their 2003 model but continues to ignore it on their 2004 model claining that it has been addressed although they are not clear on how they addressed it. I fear that this problem if not addressed by Nissan will result in an unfortunate accident for someone unaware of the problem. It is suprising to me that auto manufacturers are not obligated to disclose these kind of known issues with their products. It seems that the dealers are notified but not the consumers who have bought their products.

- San Diego, CA, USA

I have Nissan 350Z 2004 model and the tires are featuring and I only have 15000 miles on the car. There are many incidents like this and Nissan fixed some of them but not others. They have bad alignments and poor quality tires on the car. I hope it is not defective design. My new car sound like a truck with off road tires. I am not sure if the tires will blow up on me. I would like to see Nissan do a recall and fix this problem.

- Plano, TX, USA

With less that 1" inch of snow on the ground, my car completed a 360 degree spin on route 48 by taylorville, il while going 45 miles an hour. I was the slowest car on the road. My car is a 2004 Nissan 350Z with Bridgestone potenza RE040 tires. This is the second "spin" on those tires. The other spin was 180 degrees while going less than 25 mph. It has taken me 3 minutes to get my car in the garage when there is any snow on the driveway. Please note that the distance from the street to my garage is probably less than 60 feet.

- Mahomet, IL, USA

Tire noise that started within 6 months of purchase and at less than 12000 on my new 2004 350Z. Dealer kept blaming Nissan. Nissan kept telling me they could not replace them because it was out of their warranty period which was 12 months and 12000 miles.

- Harrodsburg, KY, USA

2004 Nissan 350Z, front tires roar while driving down road. Took vehicle in for service and the service manager says we need new tires and it will cost $650. I stated, this is a new car and we didn't do anything to wear the front tires out. He says to call Nissan. Now I am finding out that this is an on-going problem with these cars and Nissan has not addressed it (yet). We cannot afford to by new tires every year.

- Waycross, GA, USA

I own a 2004 Nissan 350Z. It currently has 5800 miles on it and I am having problems with the tires. They are feathing and are very loud.

- Palm Beach Gardens, FL, USA

Consumer complained about front end noise. Consumer took the vehicle to the dealer, and was told that it was a tire defect. Front tires feathered from the inside relating to irregular tire wear. Dealer stated that they were replacing so many tires that the ones needed were back ordered. This started on September 18, 2004. The consumer stated that the problem lies with the suspension not the tire. The back tire of the vehicle is starting to feather.

- Leesburg, VA, USA