Iron Man armor (Mark XXII)

Main system
 The Mark XXII War Machine 2.0 Prototype suit (or Hot Rod) was designed for James Rhodes after the battle with Whiplash and the New York battle as a prototype for the War Machine armor. It gets it's name Hot Rod for it's flame like custom design on it's arms and legs plates, resembling a "Hotrod" car.

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Upgrades
This is a non-weaponized prototype of the War Machine armor, having no external weapons. It has the same defense as the first War Machine armor, but 1/3 of the weight. It also features technology comparible with that of the Mark V.

Iron Man 3
The suit was created after the New York battle. Tony realized that there couldn't be one suit that could do anything, so he started building suits specializing in certain areas and was presumably placed into the Hall of Armor along with the rest of the Iron Legion. When the "House Party Protocol" was ordered, it possibly flew to assist Tony in the Extremis battle. If it was at the battle, it was either destroyed by the "Clean Slate Protocol" or the Extremis soldiers. Though this is unknown as when Rhodes asked for a suit, Tony said he couldn't as they are coated to him.

Trivia

 * It is possible that it wasn't at the Extremis battle, but this has not been conformed.