Just did a quick check on GoCompare:
Cheapest is DNA with a £1071 quote, unfortunately that's with a £3000 excess.
Next cheapest is £1,199.26 with Swift Cover, including Legal and Courtesy Car, protected NCB.
I'm 30 years old, driving since 18, 7 years+ NCB, 3 points on my licence. The thing that's putting it so high is probably my location, Manchester (M40).
** EDIT ** Just came home to find the renewal quote from Elephant waiting on my doorstep, I was expecting them to be around £1200 going off the additional premium I had to pay when moving to the Z4 from my old Ford Focus. Turns out the renewal quote is £830!
I'm extremely pleased with that, considering the quotes I'd had online. That's for 11 years NCB, Protected No-Claims, 2 named drivers (my mother and my girlfriend who's 26), personal injury cover, 1250 of hifi gear, £350 voluntary excess and only £60 compulsory excess.