That is until now, at least according to Autocar. An unnamed source tells the British magazine that the hybrid drivetrain will debut on the next-gen 612 (could the recently-spotted long-wheelbase 612 be a hybrid mule?) with a pair of torque-laden electric motors that will be connected to the front wheels. Ferrari’s traditional V12 or possibly a turbocharged V8 engine would send power to the GT car’s rear wheels.

As befitting an automobile wearing the coveted Prancing Horse badge, Ferrari is said to be using the system to benefit handling and not to improve fuel efficiency. Whatever the case, we’ll surely know more by 2014 or so when Ferrari is actually expected to have the hybrid ready for production.

Ferrari is reportedly currently working on the three V12 cars that will replace its comparable current offerings: the 612 Scaglietti, 599 GTB, and Enzo. The 612’s follow-on will be the first one to arrive, likely in early 2012, and another mule has been spotted out and about. It still sports the hood scoop (bigger engine with more power, anyone?) and California-style stacked tailpipes, and it looks like it might have a longer wheelbase to boot.

Rumor has it that the new direct-injected V12 will be 40 percent less polluting and get 40 percent better gas mileage than the 5.7-liter V12 presently in use, even as it’s expected to get a slight 7-horsepower bump to 540. The fuel economy increase would provide a very respectable 16 MPG - not bad for a car that ought to hustle to 60 MPH in about 4.5 seconds. Check out a host of new spy photos in our gallery below. In case you’re curious, the sticker on the steering wheel boss which reads “Betrieb nur mit geschlossener Motorhaube” is an instruction telling drivers that the engine should only be started with the hood closed.

With the new 458 Italia ready to go, the 458 Spider on its way, and the California still fresh on the market, Ferrari is turning its attention from the V8 range to its V12 flagships. CAR sat down with the company’s CEO and managing director Amedeo Felisa, who revealed the full roll-out schedule for not one, not two, but three new V12 supercars currently under development in Maranello.

First up is the 612 Scaglietti, which has been on the market since 2004. That may not seem like a long product life cycle, but considering the lackluster Scag hasn’t exactly won the hearts and minds of enthusiasts and customers, Ferrari is apparently moving ahead with its replacement, due to hit the market by 2012.

Around the same time, we can expect to see the long-anticipated supercar to follow in the footsteps of the 288 GTO, F40, F50 and Enzo. Although Ferrari has been working on hybrid propulsion and other forms of green technology, those bits won’t be ready by the time the Enzo’s successor rolls around, so expect a more conventional V12 (or possibly twin turbo V8) to drive Maranello’s new benchmark.

The replacement for the 599 GTB Fiorano, meanwhile, will take a little longer. The two-seat GT was introduced a few years ago and recently treated to a new HGTE package to keep it ahead of the competition. But although the new 458 is already expected to outgun the Fiorano, and with arch-rival Lamborghini hard at work on a successor to the Murcielago, Ferrari isn’t planning to replace the 599 before 2015.