ivtec and vti are technologies as mentioned above by Bad_Cheetah where as 8th gen comes as
(1.8 vti ivtec) this will be a simple base model car with manual gear which doesn't include any feature e.g sun roof,mirror indicator ,screen,alloy rim,navi etc
(1.8 vti ivtec oriel) this is also manual gear car but include sun roof indicators on side mirrors screen. navi alloy rims etc. simply full option car with manual gear
(1.8 vti i vtec prosmatec) this is the same car mentioned above the 1st one but with auto gear .prosmatec stands for (progressive shift management technology)
(1.8 vti ivtec oriel prosmatec) this is the car mentioned above on 2nd number but with auto gear.a ful option car with auto gear.
i recently bought a 1.8 vti ivtec in black color 98 k driven isl reg 08 model 10.10 condition @ 12.40k