Lack of Upgrades

Ive noticed that some vehicles don’t have some upgrades such as tires, suspension and a few other components i understand “special” cars not having all accessible but i know a few dont have any other selections, like the colorado and only offering offroad tyres and range rover same thing Offroad tyres only, would be nice to have other choice for these vehicles such as race tires, these are just 2 that i can think of atm but i know there are many more.