We've already seen the 2020 Nissan Sentra, except it was called the Sylphy, and it debuted in China last April. The L.A. debut will give us a full rundown of the car's U.S. specs. However, a leaked order guide suggests the eight-generation Sentra could lose its manual gearbox, even though we've spotted test mules with the transmission. The same order guide says the Sentra will use a 149-horsepower 2.0-liter engine, an increase over the 130-hp 1.8-liter mill in the current car. Nissan will debut the Sentra on November 19.