temprature reading!!

hi' im geting a bit annoyed as my reader for outside temprature is reading around the 50 degrees shouldnt i of melted to death by now!! where can i get one cheap!

my car is also stutering a bit while running idle and when i pull off it doesnt kick in straight away!!

oh and the last thing i f9ind theres alot of movement in the gearbox and engine while changing gears any help or solutions will be greatly appriciated!!

The temp sensor it usuall located in the drivers electric door mirror,
A good service can usually sort a missfire.
Check the "dog bone" mounting at the lower rear of the gearbox