The designation indicates an engine with a displacement of 2.0 liters that is equipped with a turbocharger. Engine displacement refers to the total volume of the cylinders in an engine. A turbocharger is a forced induction device that compresses air entering the engine, allowing it to burn more fuel and produce more power than a naturally aspirated engine of the same displacement. For example, a 2.0-liter engine with a turbocharger can often produce horsepower figures similar to, or exceeding, those of a larger, naturally aspirated engine.
This combination offers a balance of power and efficiency that is highly valued in the automotive industry. The smaller displacement can lead to improved fuel economy compared to larger engines, while the turbocharger provides a power boost when needed for acceleration or towing. Historically, turbocharging was primarily used in high-performance vehicles. However, the technology has become increasingly prevalent in mainstream cars, trucks, and SUVs as manufacturers strive to meet stricter fuel economy standards without sacrificing performance.