2010 Scion Tc. As in previous years, Scion’s sporty tC coupe offers only one engine for 2010: Toyota’s 2.4-liter 2AZ-FE engine, shared with the Toyota Corolla XRS, Matrix XRS, and Scion xB. The 2AZ-FE is unchanged for 2010. As before, it is a 16-valve inline four with an aluminum block and head, cast-iron cylinder liners,