what car has the starter inside the transmission

[McBeckett]

No mainstream production car has the starter motor physically located inside the transmission's main housing. The starter is almost always mounted externally on the engine. However, you are likely thinking of the design used in many hybrid vehicles, where an electric motor/generator is integrated into the transmission assembly. This motor serves the dual purpose of providing propulsion and starting the internal combustion engine, effectively replacing the traditional starter.

This integrated starter-generator is a key component of systems like Toyota's Hybrid Synergy Drive and similar setups from other manufacturers. In these designs, the electric motor is situated within the transmission casing, between the engine and the gearset. When the engine needs to start, this motor spins it to life seamlessly and quietly, unlike the distinct "cranking" sound of a traditional starter.

The primary advantage of this setup is smoothness and efficiency. Because the electric motor can bring the engine up to a higher RPM almost instantly before injecting fuel, the start-stop process is virtually undetectable. It also allows for more advanced energy regeneration during braking.

The table below lists examples of vehicles that use this type of integrated transmission-mounted motor.

Vehicle Model	Powertrain Type	Role of Integrated Motor
Toyota Prius	Hybrid (e-CVT)	Functions as both a starter and a generator
Ford Fusion Hybrid	Hybrid (e-CVT)	Starts the engine and provides propulsion assist
Chevrolet Volt	Plug-in Hybrid	Serves as the primary starter and a generator
Honda Accord Hybrid	Hybrid (e-CVT)	Integrated starter-generator within the transmission
Toyota RAV4 Hybrid	Hybrid (e-CVT)	Starts the engine and drives the wheels

It's important to distinguish this from a conventional starter. While the function is similar, the integrated design is far more robust and integral to the vehicle's operation. If this component fails, it is a major repair involving the transmission, which is significantly more complex and expensive than replacing a standard starter motor.

[MaciRose]

You're probably hearing about hybrids. In cars like a Toyota Prius or Ford Fusion Hybrid, there isn't a separate starter like in an old V8. They use a big electric motor that's built right into the transmission. It spins the engine to start it when you hit the gas, and it's so smooth you never hear a crank. It's a brilliant design for fuel economy, but if it ever goes bad, it's a transmission-out job, which is a wallet-buster compared to a simple starter swap.

[ClaraFitz]

From an engineering standpoint, the component you're referring to is an integrated starter-generator. This is a key feature in most series-parallel hybrid systems. It's packaged within the transmission's housing to optimize space and power transfer efficiency. This motor operates at transmission fluid temperatures and is designed for high durability. Its placement allows for direct torque transfer to the drivetrain, eliminating the need for a separate starter motor, a flywheel ring gear, and a solenoid, thereby reducing mechanical complexity and weight.

[ThomasDella]

As a longtime Toyota hybrid owner, I can tell you the starter is part of the transmission system. You don't hear it click or crank. When the gas engine needs to kick in, say for merging onto the highway, it just sort of smoothly wakes up. The mechanic explained that the electric motor that helps drive the car also acts as the starter. It's fantastic for gas mileage, but I do worry about the repair bill down the road if that part ever has an issue, since it's not a simple fix.

[SanMiguel]

My neighbor, a retired mechanic, just explained this to me. He said for most regular cars, the starter bolts to the side of the engine. But for hybrids, it's a whole different ballgame. They put a powerful electric motor inside the transmission itself. This one motor does two jobs: it helps move the car and it starts the gas engine. He warned that while it's very reliable, it's a major repair if it fails because the whole transmission has to be disassembled to reach it. It's a trade-off for that great fuel efficiency.