These luxury vehicles typically offer a plush ride, an impeccable interior, quiet cabin, advanced safety systems, and crisp handling. Models such as the C-, E-, and S-Class sedans, and the GLS and GLE SUVs, have performed very well in our tests. High-performance AMG versions are fierce track-bred machines. The line is freshened with a redesigned CLA sedan and GLA SUV, and a new GLB SUV. An electric EQC SUV is on the horizon. Reliability has been a sore point for some models.