I was under the impression that floor mats are standard according to the golf brochure..
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All three can be retro fitted after. The Bluetooth is not part of the unit. The only media difference between a RCD and RNS is the RNS has a hard drive and can play DVD (which will only work while parked if its factory fitted unless you do the mod later). And camera is easy if you follow the many threads posted on hear
Carsales at the moment shows a few available for $40k in base spec. Next interesting one is $41,400 with leather, then it's a jump to around $43,000 with sat navigation. Of course these are advertised and without bargaining :)
This is why I'm thinking of just buying a rns later as i'm thinking I could probably buy and install for about $1800 including camera.
Just a word from experience, .. Leather and convertibles are not a great match.. I have an MX5 with Leather, you get your arse burnt if you leave the top down for any length of time
Most people I know with verts just throw a cover (sheet etc) over seats when they leave the car if the top is down, back in the car, take the cover off and all good.
Never mind the seats, travel with the top down in QLD at the moment and you would end up with sunstroke in a very short time.
I remember when I went to Hawaii and hired a Mustang convertible ( as you do) 20 mins and we had to put the top up as sunburn was setting in already.
Nothing like a tin top and aircon.
Just spent two weeks in Vegas and Arizona and same applies.