The midsized GS is a quiet and polished luxury sedan.
Both engines are smooth, powerful, and linked to a superlative five-speed automatic transmission.
Though competent, these rear-drive cars lack the optimal ride-and-handling balance of the BMW 5 Series and Mercedes-Benz E-Class.
Handling is capable but unexceptional.
Braking capability is excellent.
The front seats are comfortable, but the rear is just adequate.