I had a E92 M3 back in 2013 that I didn't get along with overall(relative low torque/a chunky kerbweight/max power at 8300rpm). So when the M4 came out I've wanted one ever since(far better brakes/lots of torque/more performance).
I've had it a couple of months now and I'm really smitten with it, it doesn't sound anywhere near as good as the V8 in the cabin though and the induction noise in the M3 was really addictive. But what you lose in sound you get back in performance because the M4 feels quick all over the revs. The performance has blown me away for sure. Just looking forward to getting to know it more now.
All I've done to it is change the front chrome grills to black gloss OEM ones.
Some pics.

I've had it a couple of months now and I'm really smitten with it, it doesn't sound anywhere near as good as the V8 in the cabin though and the induction noise in the M3 was really addictive. But what you lose in sound you get back in performance because the M4 feels quick all over the revs. The performance has blown me away for sure. Just looking forward to getting to know it more now.
All I've done to it is change the front chrome grills to black gloss OEM ones.
Some pics.


bit of a big price difference with decent ones being 50-60k.