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Infiniti previews modified Q50 Red Sport 400 for SEMA

Infiniti sports sedans are having a bit of a renaissance these days thanks the dirt cheap prices of high mileage G35s and G37s. As such, it's a good a time as any for Infiniti to introduce an aspirational vehicle in the same lineage: a Q50 Red Sport 400 built for the 2023 SEMA Show. The Q50 is probably not a car you've given much thought about in recent years, as it's been hanging around largely unchanged since its introduction in 2014. Infiniti hasn't had a presence at SEMA for most of that time either. This year, the luxury brand has cooked up a Q50 Red Sport 400 loaded with aftermarket accessories for the Vegas extravaganza. The car was built to showcase products from the Infiniti Performance line accessories, which includes suspension bits like upper control arms, rear traction rods, endlinks and more. There's also performance brake pads and a cat-back exhaust with the Infiniti logo etched into the tip. The Q50 show car also adds more coolant into the cooling system with a thicker radiator, a billet-aluminum expansion tank and an auxiliary intercooler tank. Naturally, there's a cold-air intake too. The build was done in part with Mobil 1, who has filled the 400-horsepower twin-turbo 3.0-liter V6 with 0w-20 synthetic.  The most desirable parts of all might be the four lightweight Nismo LM-RS1 wheels. Measuring 19 inches in diameter and 9.5 inches in width, they are available in black, gray, or bronze. The purpose of all this, Infiniti says, is to let owners of the Q50 and Q60 (and older G37s and G35s) know that the company offers a line of parts for customization. It's not the first time Infiniti has tried something like this. Anyone remember the short-lived Infiniti Performance Line (IPL) from 2010? Infiniti's commitment to performance has always seemed half-hearted. Maybe this time it'll stick around for a bit longer.

A look inside Infiniti's variable-compression engine

We're sympathetic to anyone who had trouble understanding what's going on with Infiniti's new variable-compression engine. While we got a full tech briefing on the novel VC-Turbo back in August, the visual aids were lacking. The cutaway engine Infiniti brought to the Paris show fixes all of that. You can thank the little green and pink lines on the cutaway for making the whole idea a little more clear. Click through the gallery to see two lines – one green and one pink – that represent the different strokes allowing for different compression ratios. Remember, the compression ratio is the amount of volume in the cylinder on intake compared to the amount at the end of the compression stroke. Leave more room at the end and you lower that ratio. The length of the stroke doesn't change with this system, but where it sits along the cylinder does. Hence those two lines. The variable compression ratio allows this new turbocharged engine to maximize fuel economy when the turbo isn't needed by raising the compression ratio. It will see its first use in the next Infiniti QX50 crossover, previewed by the QX Sport Inspiration concept that's also on display in Paris, and has performance targets of 268 horsepower and 288 pound-feet of torque. After, it will migrate to other Infiniti and Nissan vehicles, with transverse front-drive-based applications first in line. Eventually, it's likely to completely replace Nissan's corporate 3.5-liter V6. We'll be poking around the engine a little more in Paris today to try and get some more info. For now, enjoy those cutaway images and those friendly little lines. Featured Gallery Infiniti VC-Turbo engine cutaway View 14 Photos Paris Motor Show Infiniti Nissan Technology Emerging Technologies engine 2016 paris motor show

Infiniti Q60 dies at year's end

In 2021, Automotive News' Future Product Pipeline coverage for the Infiniti brand contained a single entry for 2023: "Infiniti Q60 ends in 2023." Turns out the report of the Q60's death was true; the brand confirmed to Car and Driver that the coupe ends production at the end of this year. We wish we were surprised at the news or the rationale. An automaker spokesperson told the magazine, "We are focusing on the most popular luxury automotive segments such as crossovers and SUVs, as well as the upcoming EV we recently announced that will be built here in the U.S." The official justification didn't address the fact that dealers sold 2,728 units of the Q60 in the U.S. last year, 64 units fewer than achieved in 2020, and 2,315 units fewer than dealers moved in 2019 — the year Q60 sales fell off a cliff after selling more than 9,000 units in 2018. Consider this another step in the "three-phase company transformation" that Chairman Peyman Kargar is in the second stage of working through. The first phase of recovery ended this March, the luxury automaker getting back to profit globally. The current second stage that will revamp, electrify, and expand the lineup is predicted to last for the next four years. The spearhead will be the new QX80 SUV, planned for late next year or early 2024 with ambitions to challenge the Cadillac Escalade, Lexus LX, and Range Rover. That luxury club barred Infiniti from entry awhile ago, so Kargar's talking about profound turnaround. As for the Q60, the shame is that a car with sweet looks and even sweeter power never got the interior or driving dynamics to match. Perhaps the return of a much better Nissan Z can provide fodder for a proper Infiniti coupe once the luxury division has restored its momentum. The spokesperson told Car and Driver that Q60 inventory should last until well into 2023, so anyone looking for a 400-horsepower bargain with a six-speed manual should mark their calendar for early next spring.   Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.