The only 'facelift' upgrade I'm aware of is the new alloy wheels and touch screen sat nav, both available on 57 plates onwards.
The things you have noticed are simply options available - one car had them, the other didn't. One stereo would have had been the upgraded version, and the armrest was an option as well, which came with sliding cover etc.
So in short, one was more highly spec'd than the other
The things you have noticed are simply options available - one car had them, the other didn't. One stereo would have had been the upgraded version, and the armrest was an option as well, which came with sliding cover etc.
So in short, one was more highly spec'd than the other