Hi, I have just bought a Mazda 3 MPS 3 weeks ago, (this is my first turbo charged car) and one thing I have noticed and my friends driving behind me have also noticed is a smell when accelerating/ doing pulls past 5k ish rpm's. I thought this might be somewhat normal since my brother has a b8 A5 tfsi quattro which also smells similar. Same with my mates BAM Audi TT quattro and MK6 Golf tsi. However I started to look into it a little and saw all sorts of problems such as the PCV valve, turbo, exhaust etc.. but just wanted some help knowing whether this is a common thing and or any insight from anyone that has more experience. Thank you 
