
I just had the opportunity to interview Micky Bly who is GM’s director of hybrid vehicle integration. He runs the team that will integrate all the subsystems in the Volt to make it a pleasantly drivable and cohesive machine.
I asked him about the Volt development vehicle schedule.
He explained to me the the Volt will eventually come into being in three distinct developmental vehicle stages, or "build phases".
The car that’s currently running with the lithium-ion pack is one of about a "handful" of cars that he calls EDV’s or engineering development vehicles. These cars, with Malibu shells, are for testing various functions of the final Volt. There are battery cars, ride and handling units, ones for propulsion systems, brakes, and steering. These are intended to analyze the behavior of and to get specific subsystems working. They are not complete vehicle tests but to go prove individual subsystems.
Next up are the true mule vehicles, or ARM’s, and are whole vehicles with all of the systems coming together. They contain a lot of hand built parts, but are "design intent". Those will arrive at the end of 2008, and will typically be run for about a year, because that’s about how long they can last from a mechanical standpoint due to their rough hand-made nature. There will be "a couple of dozen of these", and some of these cars will have the approximate final Volt physical design.
The final phase cars are called the integration vehicles. These look and act for all intents and purposes nearly exactly the same as the production cars. This phase brings every thing together from a "pleasability, driveabilty, fuel certification, fuel economy, and EV" standpoint. Final surfaces are on those vehicles so we’ll know what they’ll look like. All the final aero and wind tunnel work can be done with them. They are the last phase until going into production in the manufacturing plant after that. These are very high fidelity vehicles and they will run beyond the production date.
Bly can "say confidently the integration vehicles will make their appearance in the 2009 calendar year" and will be built in some significant quantity. These cars are street legal and may be used in a captured test fleet for selected GM employees to gather real-world data.
So, in a way, it looks like there will be Chevy Volts on the roads in 2009.