Dude you won't regret a V6 916 Spider. I LOVE mine!! So the price looks reasonable given the year and mileage. Have a look at the one at Chatz for comparison. It all depends on condition though. It's only worth that if it's in very good nick. Things I'd look out for would be:
Have the cambelt and tensioners been changed?
Has the water pump been changed and is it a metal impeller type?
The car should go like a rocket. If it feels laboured or strained there may be an air intake leak (see further down) or the MAF may be knackered.
Condition of the fabric roof and back window. The frame often wears holes in the roof on the back corners when down (The one at Chatz has this problem)
Roof should work as expected with the car stationary and the hand brake up. Make sure the two front latches are 100%. They're difficult to come by.
Check the little spring loaded flaps on each side of the roof compartment work properly. If the springs are broken the roof doesn't latch in the down position properly
Check the sills. These have often been bashed or crushed by careless tyre fitment people etc
Check the clutch and flywheel engagement. Is the clutch very heavy? Could mean it's at the end of it's useful life
Check that all the keys and code card are available and that the remote central locking/alarm works as it should
Check the doors and rear quarters for car park dints. Not a deal breaker but annoying
Check the wear on the inner edge of the rear tyres. These cars run negative camber and they often wear the inner edges excessively
Check for any suspension squeaks, knocks or groans
Check the inlet flexi hose. These often perish and crack. Part is available but it's not cheap.
Check the CV boots and drive the car left and right on full lock while listening for any knocking
Check that fuel isn't leaking from the rubber hose connecting the injector rails. These can perish and create a fire hazard. This normally needs the engine running to spot
Is the fuel pump noisy? If it is it could be on it's last legs
Are all the covers and trim in the rear compartment behind the seats present? The whole areas should be carpeted with the battery cover present (This is often missing and EOA)
Get the car up to temperature. the gauge should stay relatively close to 90 for most of the time.
Are any of the headlight lenses or foglight lenses cracked or broken (These are getting difficult to source)
Check for any front end accident damage. Normally easy to spot as the front cross rail and chassis members are so easy to get to.
Slide under the rear bumper and check the rear valance for any accident damage
Does the electric aerial go up and down as it should?
Do the auto drop windows both work as they should? Also drive the car on the highway and have a listen for any wind noise past the window seals. It's not a deal breaker and very common but a PITA to sort.
On start up do any of the climate control panel LED's flash? This indicates a fault in the system
Are the windscreen washer spray bars there with all their pipes and working correctly? (Also a cheap fix)
That's all I can think of for now. If you'd like someone who's familiar with V6 Spider's and it's in the JHB area then I'd be happy to take a look.
One more thing. The windscreen frame and mirrors should be painted satin black. If they're body colour the car has had some spray work. The Chatz car has this.
Keep in mind that the 3.0 V6 Spider is quite a rare beast, not just in South Africa but the world. You'll have a very exclusive car and an appreciating modern classic if it's looked after.
