Lexus450AA

Does anyone know what does the 450 stand for in RX 450H?

oldcajun

It is supposed to represent the equivalent displacement added by the hybrid motors. The 3.5 liter (350) with the hybrid system is equivalent to 4.5 liters (450) according to Lexus.
Steve

Lexus450AA

Tanks a lot for the answer Steve ! now I know :-) I've been looking for explanation online but couldn't find any.

mcomer

Other Lexus Hybrid models that take credit for the extra power:
CT200h has the 1.8L as used in the Prius
ES300h uses the 2.5L used in...everything!
GS450h uses the 3.5 sort of like the RX450h but tuned/geared for more power
LS600h uses a 5.0L V8 derived from the 4.6L

Always seemed very straight forward to read the trunk lid of M/B, BMW, Lexus for the motor size.
Now is it getting a bit blurred:
Current IS200t is really a 2.0L, IS300 is a 3.5L with 255HP/236lb-ft, IS350 is the 3.5L w/ 306HP/277lb-ft (all Premium fuel)
2018 NX300 will be the renamed NX200t which is the 2.0L, the NX300h remains the 2.5L as before
2018 LS500 will be a twin turbo 3.5L, the LC500h is a 3.5L hybrid. Good news, the LC500 is...a 5.0L!

tempestv8

The renamed NX200t (now NX300) produces far more power/performance than the hybrid NX300h. So the numbers are a bit misleading, suggesting that the NX300 gas model is on par with the NX300h in terms of performance. I'm nitpicking though; not a slur on the hybrid variant as I'd pick an NX300h over the NX300 any day, as a personal choice if the situation ever came up.

Rich707

My apologies to the Moderator(s):
Just noted my prior post above in the wrong section.
Please move as needed.
Thank you.