Since 2012, the company has been producing the 0.9-liter 8-valve Fiat TwinAir 199B6000 engine, which is found in many of the Italian company’s well-known models, including the 500, 500L, and Punto. The Alfa Romeo MiTo hatchback’s basic modification also has this unit under the hood.

The TwinAir line also includes: 312A2000.
Specifications
| Production years | since 2012 |
| Displacement, cc | 875 |
| Fuel system | distributed injection |
| Power output, hp | 105 |
| Torque output, Nm | 145 |
| Cylinder block | cast iron R2 |
| Block head | aluminum 8v |
| Cylinder bore, mm | 80.5 |
| Piston stroke, mm | 86 |
| Compression ratio | 10.0 |
| Features | MultiAir |
| Hydraulic lifters | no |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | MHI TD025L4BR |
| Recommended engine oil | 0W-30 |
| Engine oil capacity, liter | 3.2 |
| Fuel type | petrol |
| Euro standards | EURO 6 |
| Fuel consumption, L/100 km (for Fiat 500L 2015) — city — highway — combined |
5.7 4.3 4.8 |
| Engine lifespan, km | ~180 000 |
| Weight, kg | 85 |
The engine was installed on:
- Alfa Romeo MiTo I (Type 955) in 2013 – 2018;
- Fiat 500 II (312) since 2013;
- Fiat 500C II (312) since 2013;
- Fiat 500L II (351) in 2012 – 2018;
- Fiat Punto IV (199) in 2013 – 2018.
Disadvantages of the Fiat 199B6000 engine
MultiAir failures are the primary issue for car owners with such an engine.
The timing chain’s resource is limited; it occasionally travels less than 100,000 kilometers.
Turbine failure is frequently caused by infrequent replacements and other lubrication savings.
The motor has several costly components, including a thermostat and an adjustable pump.
