I'd have it serviced as you're within any margin of delay and then I'd mention the problems as it goes in for service and ask them to deal with it under warranty. If they refuse you have grounds to take it further as nothing on a web search says the warranty is limited to commercial hire and Toyota have a reputation for better than decent customer service and warranty honour. if they don't play ball sell it and buy a Hyundai or Kia. Someone on the forum has an i40 as a taxi and has had good warranty service.

Hyundai Warranty specifically states for taxis, couriers and rental cars the otherwise unlimited mileage is limited to 100,000 miles or 5 years.

So I'd guess Toyota will regard their cover limited to 100,000 for taxis.

Thanks Oldtoffee, your advice is the best so far, thats what i decided as well, not to turn up for fault finding appointment, but to just book appointment for the fixed price Toyota Full Service Package @ £350.00 and leave the car with them. Then I will see how the report turns out, what red (Urgent work needed) and whats amber (caution).

I have noticed it more & more that the car struggles a bit to move off in 1st and 2nd gear for the 1st 150000 revs and then suddenly catches power and moves faster with a jerk and 5th & 6th gears are just too underpowered.

BTW i phone up another Toyota dealer Mechanic, he said you can go over the 10,000 service interval mark by 2,000 and still it won't be an issue, so i worked like crazy and car mileage is now 80,800. Also he said by the sound of symptoms it seems the head gadsket is leaking or corroded... (something like that). This is my work horse I don't plan to sell it, i love it v. much but if Official Toyota dealer under-deliver then what can i do?? I guess you are right, Hyundai or Kia will be next. I will give an update on what happened after Full Service