The V8 posts almost identical figures, and with its more cultured exhaust note and additional 44 hp may be the better choice. (carbuzz.com)
They achieve identical figures of 43.5 mpg without it or 46.3 mpg with it. (autoexpress.co.uk)
The GT53 shares identical figures to the CLS53, which means that despite its entry - level status, this model supplies plenty of performance — 0 - 62mph in 4.5 seconds, 177mph at the top end — while the hybrid tech allows it adequate fuel consumption of around 31mpg. (evo.co.uk)