That’s a 2000 Lexus GS400. The Lexus GS is a line of luxury sedans that was made between February 1993 and August 2020. This is from the second generation, which was made between August 1997 and December 2004 (model years between 1998 and 2005). The engine is a 4 liter 1UZ-FE V8 that produces 300 horsepower and 310 pound-feet of torque. The transmission is a 5-speed automatic.