150 million KRW (approximately $112,500) — a four‑cylinder?
Mercedes‑Benz finally decides to replace the engine
New SL overhauled with six‑cylinder lineup
Mercedes‑Benz will replace the entry model's engine in the next‑generation SL facelift.
The four‑cylinder used in the current SL43 will be discontinued,
to be replaced by a new six‑cylinder unit.
Critics have long argued that a luxury roadster doesn't suit a four‑cylinder,
and analysts say the move reflects market feedback.
3.0‑liter inline‑six installed…
Renamed SL53
The SL53 will be powered by a 3.0‑liter inline‑six 'M256 Evo'.
Output is expected to be around 449 horsepower, and the engine will include a mild‑hybrid system that adds roughly 23 hp of auxiliary power.
Mercedes will also shift from rear‑wheel drive (RWD) and make all‑wheel drive (AWD) standard.
V8 also evolves — output climbs to 650 hp
Higher‑trim models will see major performance upgrades as well.
The 4.0‑liter twin‑turbo V8 will gain performance after switching to a flat‑plane crank.
SL55: about 537 hp
SL63: about 650 hp
These figures mark a sizable jump over the previous generation.
Impact of emissions regulations
Outcome: performance gains
The change is driven by Europe's forthcoming Euro 7 emissions rules.
Because the existing four‑cylinder couldn't meet the standard, Mercedes opted to fit a more powerful six‑cylinder instead.
Industry observers call it a rare instance where regulation has driven performance up rather than down,
and suggest Mercedes is using the change to help restore its brand image.
As a result, the new SL is set to put the 'downsizing' debate to rest and return to its roots as a bona fide performance roadster.
