The GS 450h retains its position as the most expensive in the GS lineup .
The GS 450h has faster acceleration than the GS 460 , though the GS 460 is lighter and has a higher top speed .
The GS 450h retains its position as the most expensive in the GS lineup , and has faster acceleration than the GS 460 , though the GS 460 is lighter and has a higher top speed .