The new Sonata differs greatly from the 5th Gen Sonata in terms of engine, exteriors, interiors, etc. Some of the major changes include their new direct injection 2.4-litre petrol engine with 6-speed auto and manual transmission for better fuel efficiency. Changes to exterior include a completely re-designed front fascia making the New Sonata more “Fluidic”. The rear gets a set of new tail lights. A larger wheel-base makes the interiors of the New Sonata more spacious and over-all cabin quality has been uprated to make the Sonata more competitive.