Animated Tanks

Transforming tanks are tanks that are able to switch between 2-19(Switcheroo only and two are deleted or one) different tanks by pressing either O, shift/right click or q.
This is simply an extended version of the page Morphing Tanks so credit to the creator of that page as that is where I found the last 4 on this page.

When will it be useful?

These tanks will be useful when using one form to damage others and one to flee and, possibly one to shield.

How many are there?

In total there are approximately 25 but counting the Hybranger and the Switcheroo there are 27. Some are powerful, some are weaker and some are confusing as to why they transform as it's obvious which is the best like the silo form of whatever.

List of tanks that have the transforming ability

There are 27 tanks with transforming abilities and the list is as follows:
Transfortress
valtion
Vaulter
Vympel
whatever
Aerobat
Arrival
Speed Penta
Misitor
marlin
saboten
Tambarin
Particle Accelerator
Nokideth
Wideangle
Bite of '87
Bounty Hunter
Castano
Derringer
Extender
File:Hybranger.png Hybranger
switcheroo
Balisong
Led Zeppelin
Redistriplet
File:Steyr.png Steyr
File:Stick-shift.pngStick-shift
Akafuji

Examples of transforming tanks:

Balisong morphing

Extender morphing

Speed Penta morphing

Akafuji morphing

Wideangle morphing