Re: Choice between A3 1.9TDI and 1.6TDI - couple of quick questions –
03-12-2009,01:29 PM
Hi,
The 1.6TDi comes with stop/start technology to reduce emissions, whereas the 1.9 did not. Otherwise, I haven't heard of any spec changes.
Given that you're getting this as a company car and your benefit-in-kind tax is calculated based on the CO2 emissions of the car, I'd say the 1.6 is the one to go for.
To be honest, if you want to spec the car in a particular colour with specific options, you may not be able to get a 1.9 anyway, as they are no longer being built.
Have fun ticking those option boxes! 
MF.
Gone: 2016 A6 Saloon BE Ultra S tronic - Floret Silver, Tech Pack Advanced, Parking Pack Advanced, Heated F+R Seats & Wheel, Electric Seats, Matrix LED, Ambient Lighting, Speed Limit Display, Twin Spoke 20", Folding Memory Mirrors
Now: E 53 AMG 4MATIC / Q5 2.0TFSi Prestige