Hi there, 
  
I'm new to the forums and have just bought my first 350z!  - It's a 56 plate GT coupe. 
  
However, I've noticed an issue with the car already . In 1st gear, when you drive up to around 4-5k revs it pops out of gear quite hard. It makes a loud noise like hitting a pot hole. Also, very occasionally it'll make a slight knock when changing into 2nd :-( - any ideas what might be happening? 
  
I need to find a garage and get it checked out but would like to find a specialist on the Z in my area (wiltshire). I've found a place online called Horsham Developments and wondered if anyone has used them or knows what they are like? 
  
Cheers 
  
Kes :-)