Lexus is testing a 600 horsepower, 6-Speed Manual RC prototype

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Oct 2, 2024 | 06:27 PM

#46

Motorola

Lexus Test Driver

Joined: Mar 2020

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From: N/A

Quote:

Originally Posted by situman

A 2L is only .6L bigger than the 3cyl. It would never work in a heavy vehicle unless a hybrid system is attached to it. Still remember that 2L and 2.2L 4cyl from the 1992 to early 2000 Camrys. Those were marvels of refinement, though pretty underpowered.

A GLC43 with the 400 HP turbo 4-pot weighs 4500 pounds, that's heavier than an RX350h. Weight will not be an issue.

Oct 4, 2024 | 07:56 AM

#47

situman

Lead Lap

Joined: Jul 2010

Posts: 3,872

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From: NY

Quote:

Originally Posted by Motorola

A GLC43 with the 400 HP turbo 4-pot weighs 4500 pounds, that's heavier than an RX350h. Weight will not be an issue.

It has a 48v mild hybrid system to help with low end power no? I'm sure you left that part out by mistake.

Oct 4, 2024 | 08:29 AM

#48

geko29

CL Community Team

Joined: Feb 2007

Posts: 9,339

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From: IL

Quote:

Originally Posted by situman

It has a 48v mild hybrid system to help with low end power no? I'm sure you left that part out by mistake.

Yes. While the motor itself only adds at most 13hp directly to the driveline, the real benefit is the electrified turbo being able to build boost dramatically faster than one that is entirely dependent on exhaust pressure to do so.

Oct 4, 2024 | 03:02 PM

#49

Motorola

Lexus Test Driver

Joined: Mar 2020

Posts: 5,482

Likes: 89

From: N/A

Quote:

Originally Posted by situman

It has a 48v mild hybrid system to help with low end power no? I'm sure you left that part out by mistake.

The mild hybrid barely adds any power, only off-the-line torque to fill in turbo lag. Mercedes already used the engine in 415 HP form without a mild hybrid in a fat 4,000 pound GLA 45S in 2020.