but still have to compare apple to apple, orange to orange comparison to be fair
even for spec, price, outlook, driving feels, safety n tech, warranty, after sales service...
and outlook is up to personal taste...no 1 can decide 4 u.....
Elantra(C-Segment) competitor :
Toyota Altis, Honda Civic, KIA Forte/Koup, Nissan Sentra, Nissan Sylphy, Ford Focus, Chevrolet Cruze, Suzuki SX4 Crossover, Mazda 3(MPS/Sport-CKD/CBU), Proton Inspira, Proton Preve, Proton Persona, Proton Gen.2, Proton Satria Neo, Proton Waja, Peugeot 308, BMW 3-Series, Mercedes Benz A/B/C class, Audi A1/A2/A4 etc.
Sonata(D-Segment) competitor :
Toyota Camry, Honda Accord, KIA Optima K5/K7, Nissan Teana/Cefiro, Suzuki Kizashi, Mazda 6(MPS/Sport), Proton Perdana V6, Peugeot 408, BMW 5-Series, Mercedes E class, Audi A6 etc.