was moved from Durand's workshop in Antony to Garches. Atla Renault Powering the car was Renault's Billancourt engine, mounted behind the rear wheels in a rear-engine, rear-wheel drive layout. The Atla could be bought in kit form or as a completed car. Two levels of kit were available. A basic kit included a bare body shell with the doors, hood and rear hatch mounted on hinges and the chassis with all attachment points and cost 250,000 Francs. A more complete kit could be had that included a painted body and an upholstered interior. This kit also came with all handles, a wiring loom and a fuel tank already installed. This version cost 650,000 Francs. Complete cars were offered in four different versions; two standard and two competition. A completely assembled Atla Type 750 used the version from the Renault 4CV that produced , and came with a 3-speed manual transaxle. The Atla Type 850 used the engine from the Renault Dauphine that developed , and also had a 3-speed manual transaxle. The 750 model weighed just and the 850 model was slightly heavier at . The first competition version, called either the Monza or Rally, also had a 750 cc engine but came with a 4-speed manual transaxle. The highest performance version was called the Sebring, and it came with an 850 cc engine and a 4-speed manual transaxle. A 5-speed transaxle was an option. Engines in the Monza/Rally and Sebring models were tuned by Autobleu and received Solex 32mm carburetors, performance camshafts, larger valves and new valve springs, modified cylinder heads and custom exhaust systems. These changes raised power output for the 750 to and as much as for the 850. The competition cars were slightly heavier than the standard cars. Atla Panhard At least one car was built with Atla bodywork and the air-cooled boxer-twin engine and transaxle from a Panhard Dyna Z in a front-engine, front-wheel-drive configuration. Apart from that the number built and attribution of the Atla Panhard is debated. Some references say that the Panhard drive-train was a factory option, and that six cars were built by them at a second assembly location in Malakoff. Others report that only one such car was built at the request of one specific customer. Uncorroborated claims have been made that it was built by another company and used the Atla body but a chassis from another car. An