the car is 4x4 285bhp spec.

i use the car everyday and sometimes when it is started, i have some blue smoke coming from exhaust, what is this and why? when i look under bonnet, from turbo to manifold area there is small smoke/steam, what is this?

also when engine is idling, there is small rattle type sound, it is not constant, and is mostly when cold, the idle goes low a bit then i hear a rattle, is this engine mount? or inside engine problem?

the problems come in 3's the dream car is now the nightmare car

 

They are high maintenance cars I'm afraid, especially now because of their age.
Sounds like you need to plan on getting the head rebuilt with new seals and tighten up your exhaust to your turbo, when it's cold obviuosly...!
It won't blow up or anything soon, so don't be too worried, it's just burning some oil thats all.

 

Know the feelimg re coming in 3's m8 last 2 weeks i've had faulty alarm,fooked oil pressure switch and now a puncture,still love the cossie tho' .