... I love planes in GTA4 ... *sarcastic*
This is it.
Latest version and maybe the last ENB mod i'll do ever. I don't know yet
Only for 1.0.4.0/1.0.3.0/1.0.0.4 for the moment.
Might work on 1.0.7.0 but you have to try yourself. Sorry. This version will come later.

Available on GTA4-Mods.
http://www.gta4-mods.com/misc/icenhancer-13---enb-graphic-mod-f10005

Music : Yoko Kanno - Innocent Green

If you want cars or a car pack , I suggest you this :
http://www.gta4-mods.com/vehicles/grand-theft-auto-ultimate-vehicle-pack-v6-epm-f9615