Subtle Enhancements - Like to Have

[strummagnet]

Whilst you cant fault the driving experience of an Audi D2 I am wondering what would be any subtle 'modern day additions' that are achievable and would enhance but keep the originality of the platform. Things such as:

Auto lights
Rain sensing windscreen wipers - also the ability for the wipers when on full to switch to intermittent when at a stop
Head units (though comprehensively covered by Ronin) - my personal preference would be something like BMW's iDrive system, but its not a daily driver so my phone is adequate, for now......

Any of you have any "it would be nice to have's"?