Comparing: Aufklärungspanzer Panther vs. Spähpanzer SP I C

Planned heavy reconnaissance vehicle. The plans called for using the Panther hull in order to facilitate rapid mass production. The vehicle was to feature the Leopard turret with a gun not longer than the tank's hull, which was to ensure maneuverability in forested terrain. No prototypes were built.

The reconnaissance tank destroyer was being developed by Hotchkiss and Klöckner-Humboldt-Deutz companies from 1956 through 1962 in order to increase the anti-tank capability of recon tank battalions. A 90-mm anti-tank gun was planned to be mounted on the new vehicle. The project was eventually declined. The number of prototypes built is unknown.