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Over the past few weeks we’ve heard several rumors and reports that Lexus is planning to build an F version of the GS model. Designed to run against the likes of the E63 from Mercedes, CTS-V from Cadillac and M5 from BMW, even the big 5.0-liter V8 from the IS-F wouldn’t be enough to make the larger GS platform competitive. An even more powerful engine would be needed.

Lexus happens to have just such an engine in the new LFA supercar. The LFA’s 4.8-liter V10 makes 553-hp at 8700 rm and 354 ft-lbs of torque at 6800 rpm and according to Japan’s BestCar, will find its way under the hood of the still-unconfirmed GS-F.

It would be a great marketing opportunity for Lexus to show the LFA heritage running through the rest of the company’s lineup. The only problem would be the lack of torque and the likelihood that even with all that brute power it would still be a Lexus and, therefore, not all that engaging to drive.

More: Report: Lexus GS-F to Get LFA’s V10 on AutoGuide.com
 

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I say, put the tundra's 5.7L v8 in it and call it a day.. wouldnt it be more cost effective? not to mention the crazy torque in that engine. just dont seem to make sense to me, why would you use the engine of a $375k into one that is suppose to be projected around $80-100k? unless everything but the engine is expensive on the LFA
 

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I say, put the tundra's 5.7L v8 in it and call it a day.. wouldnt it be more cost effective? not to mention the crazy torque in that engine. just dont seem to make sense to me, why would you use the engine of a $375k into one that is suppose to be projected around $80-100k? unless everything but the engine is expensive on the LFA

Let me take your idea one step further, Tunda 5.7L V8 with the TRD Supercharger, that will solve the torque issue.

That Engine was on display in the SF AutoShow 1-2 years ago inside a red, TRD Tundra.

The numbers were 510 bhp and 500 lb-ft or there abouts.
 

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Being that the GS is a much heavier car than the LFA, I really think they will opt to go with a high displacement V8 or V8 with forced induction. The LFA's V10 is awesome but torque is going to be a factor in the GS' weight.
 
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