I've priced it low to reflect some minor work that the car requires. With a minimal investment of around £1000, you'll have an incredible car that's currently trading hands for around £9000 and possibly appreciating in value.
I've owned this beauty since 2011, and have done around 55,000 miles in it myself, many of them on long swift monthly journeys to Holland and Belgium for work (much nicer and quicker than taking a flight!). I really can't tell you how sweet it is to drive - handling, engine and gearbox are all still on-point.
However, I've recently bought an F-Type S. Was planning to keep the Z4 for work runs, but quite frankly I've found myself using the F-Type all of the time, so I'd rather the Z4 goes to a good home.
Key Details - pretty much every option aside from Sat Nav:
> Location - SE23 London
> 82,000 miles
> 2008
> Montego Blue
> Parking Sensors
> Xenon Lights
> Multi Function Steering Wheel
> Special order Cream Leather Seats and Piano Black Dash
> Bluetooth Phone connectivity
> Electric Heated Memory Seats
> Automatic Air Con
> Cruise Control
> Audio Outlet to plug in iPods etc
> Alarm + 2 keys
> MOT due in October 2019
> Service another 6000 miles away
> Newish 18" Split Rim 108 alloys - about 7500 miles ago (these have a habit of cracking after around 60,000 miles). They've got a few scuffs on them, but nothing that can't be cheaply fixed.
> Full Service History, including with BMW until 2017, then more recently with a respected BMW specialist in South East London.
General Condition - attention required
> Front bumper - damaged where someone has swiped it + a missing headlamp washer cap. Approx £400-£500 to repair/replace
> Lambda/O2 sensor - engine warning light has come up. Straightforward job. Approx £300-£400 to replace
> Drivers side arm rest - worn and cracked. Replacement, around £150
> Gloss Black dashboard trim showing cracks. Can repair or easily replace for around £150
General Condition - other bits
> Suspension lower arms replaced in 2017
> Coil packs replaced in 2017
> Full 4 wheel alignment & tracking in 2018
> All electrics working as they should
> Gearbox as slick and sweet as the day i bought it
> Good tread on tyres
> Plenty left on brakes.
> Leather is in good condition but just needs a good clean and leather conditioner to bring it back to life
> By the way, I still use this car to ferry my 2 Year Old around, hence the baby seat!
obviously needs time , effort & money spending but a fair ask at £6k for a 2008 with 82k though not sure the drivers seat "just needs a clean & condition to bring back to life " 
I hope your taking better car of your F-type 
