Well, almost exactly one year and (embarrassingly only) 5.5k miles under it's wheels, it was time for my Z4 to receive a bit of attention:
1/ "new" wheels - 107 Ellipsoids to replace my 108's
I've always been a fan of the old Alfa "teledial" style alloys (as seen on the
Alfa 8C and older Alfas) and the Ellipsoids always reminded me of that design. Well as we know, beer plus ebay don't always mix, and before I knew it I'd bought a set of 107s. Turns out got lucky as they're in excellent condition for secondhand, a few curb marks plus there were a lot of marks on the inner surface but I cleaned all of those up. I had the tyres swapped over with my Falkens from my 108s, refitting the original RFTs to the 108s (now sold).
2/ Retrofit cruise control
Many thanks to SK93 and his guide - it finally convinced me it was an easy mod that I couldn't afford not to do, especially on a pre-facelift. Officially I shouldn't have fitted it yet as it's not my birthday until next week, but the wife gave me the green light...
3/ Poly bushes fitted: front wishbone rear bushes, and the rear trailing arm bushes
I actually bought these over 11 months ago

when I bought my springs, but I've only just got around to having them fitted and the geometry set up again.
Before:
Left front = -1°54 camber, 5°14 castor, -0°10 toe
Right front = -1°18 camber, 5°24 castor, 0°00 toe
Left rear = -2°48 camber, 0°40 toe
Right rear = -2°35 camber, 0°04 toe
After:
Left front = -1°22 camber, 5°14 castor, 0°09 toe
Right front = -1°20 camber, 5°24 castor, 0°09 toe
Left rear = -2°52 camber, 0°12 toe
Right rear = -2°50 camber, 0°12 toe
Basically, after discussion with the technician about toe-out on the front we agreed it wasn't a good idea for road use in a BMW: it would amplify the tramlining I already get (despite non-RFTs) and generally make it a handful. So, I've got very slight toe-in at the front and the rear. Although, look at the "before" toe settings - they were all over the place! Castor obviously isn't adjustable with the standard setup.
4/ Heated seats
I know, I know, I was initially very dismissive of the benefits of heated seats - I thought of them as a softie option for wusses, but after experiencing them first hand (in a Skoda...) I was converted. I searched for quite a while for some electric, heated standard (non-Sport) seats and finally got lucky, buying another forum member's manual, heated standard seats. A few days later I'd bought a secondhand switch unit from US ebay ($80=£49.71) and set about swapping the manual bases for the electric ones. A lot of swearing and scratched hands later they were fitted and working - not a difficult job in the least, just fiddly as hell!
So, after 12 months of ownership and not much in the way of mods (I don't even have the pre-requisite stubby aerial

) I've gone a bit daft in the past few weeks. I've enjoyed my year of driving and hope to have many more - just a shame I don't find the time to get more miles, but between cycling to work most of the time and using my van for MTBing trips, the Z4 is very much a second car at the moment.
I did manage a nice drive on a typical Scottish winter day: it didn't get above 3°C all day (and typically this was before I'd fitted the heated seats) but the roof was down for almost the whole trip. Here's just a few pics showing off the Scottish scenery:
Just to prove that I DO have a roof (no pics of it so far):
