Potential F13 M6 owner

[JapanRed]

Hi all,

I'm potentially going to buy an M6 to sit alongside a 911 and replace my 3 series.

I want to buy with my eyes open so would appreciate no "if you have to ask then don't buy" comments.

What average mpg do people get? I'll be happy with low 20's but probably not high teens (which is what the 911 gives me).

Are there any common faults that I should look for?

Is the comp pack worth paying extra for?

Other than HUD which I want, are there any other "must haves" in the option spec?

What's service intervals like? Assume just regular BMW condition based servicing?

Anything else I should know?

Thanks in advance?

[JapanRed]

Thanks very much HOHOHO, very useful.

[JapanRed]

I was going to avoid the comp pack as assumed the ride would be too hard for day to day driving. I've got the 911 for the weekends.

Anyone know how the ride compares between comp and non-comp? What else does comp pack give (other than admittedly nicer wheels)?

[JapanRed]

I'm test driving the M4 and M6 back to back later today as I'm also considering both. Hoping the test drive will point me one way or the other haha.