Toyota Yaris I I want :)

[Forsberg]

Hello bros :)

I am going to buy Yaris I due its great durability but before I make final decision I must ask for few things.

My goal is Yaris after lifting, it is 2003 and newer IIRC. Engine 1.3 VVi, benzine.

1. How loud is car beyond 100 km\h and 140 km\h? Especially engine. I have now Opel Astra G 1.6 and at 100 km\h it is about 2900 RPM, 140 km\h about 4000 RPM and this is very loud.
2. How long did you adjust to speedometer in the middle? For me it is one of the biggest cons of this car.
3. I am going to replace digital speedometer for analog (with engine RPM). I know it is possible but is it complicated? Costly?
4. Will change radio to my own one. Will I lose something by doing that?
5. I know there is no coolant temperature display (engine temp). As everybody knows showing cold\warm is less than good as engine can have 75*C and it will show as "warm". Is there way to add temp display?
6. If I get more money is it worth to upgrade to Yaris II? Are there significant changes like better silence inside ect? So far I've heard Yaris II is less durable than I.
7. My daily usage is about 60 km, mostly on route, rarely in city :) In this case real fuel usage would be at 5-5.5 liters per 100 km? (Benzine).

Cheers.