Engineering

McLaren Tech Club reveals the secret behind the Senna GTR’s wing

The latest episode of the McLaren Tech Club covers the wing of the Senna GTR.

Photo courtesy of McLaren

Ayrton Senna was a monster on the track, hitting the apex and flying down the backstretch in ways that made crowds the world over fall in love with his capability. The McLaren Senna, a track-horned road car was designed in the spirit of Senna, the man.

The next-level variant of the McLaren, the Senna GTR, takes that athleticism a step further with a car, "designed to deliver the most extreme, raw and engaging driving experience possible," according to the super luxury automaker. They call the vehicle "mind-bendingly fast", which makes it a perfect fit for a track day.

2020 McLaren Senna GTR The wing on the Senna GTR provides 1,000 kg of downforce.Photo courtesy of McLaren

In the second episode of the McLaren Tech Club series, the company's principle designer Esteban Palazzo discussed the carbon fiber wing on the Senna GTR and why it makes the car so good.

When designing the car, McLaren engineers set out to give the car 1,000 kg (2205 pounds) of downforce at maximum deployment. That's 25 percent more downforce than the traditional Senna. The heralded McLaren P1 offered just 640 kg of downforce at 150 mph.

How did they do it? They substantially reworked the exterior surfaces of the car, giving it a huge front splitter, integrated rear-wing endplates, and a new diffuser. Oh yeah, and that huge wing.

That helps the car stick to the track when it's busy achieving the fastest McLaren lap times outside Formula 1.

The beating heart of the McLaren Senna GTR is a twin-turbocharged 4.0-liter V8 engine that achieves approximately 813 horsepower and 590 pound-feet of torque. Its carbon fiber body weighs just 2619 pounds and rides on a motorsports chassis.

The total engineering package is designed to deliver a raw racing experience. It's beyond engaging. The well-engineered wing helps you ride the line between control and out of control and, quite possibly, life and death.

Watch the McLaren Tech Club interview with Palazzo here:

McLaren Tech Club - Episode 2 - McLaren Senna GTR www.youtube.com

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Nuts & Bolts

 
 

The new RM20e Racing Midship Sports Car showcases the future of the Hyundai brand.

Photo courtesy of Hyundai Motor Group

Hyundai debuted the RM20e Racing Midship Sports Car this week, showcasing what isn't the beginning but what is very much the future of what the Hyundai brand will offer. The electric-based high-performance race car, like those designed by other manufacturers is a proving ground for technologies that may be employed in Hyundai passenger vehicles in the future.

Hyundai has been quite open about this calling the platform the RM20e is based on, the RM development platform, will be used for future N brand products that are inspired by the car. This follows as part of the progressive evolution of the car with previous iterations bearing the names RM14, RM15, RM16 and RM19.

RM20e Racing Midship Sports Car

Photo courtesy of Hyundai Motor Group

Hyundai's first electric race car was developed for the eTCR electric touring car series in 2019 - the Veloster N eTCR.

"Our new electrified RM20e pushes the proven RM platform forcefully into a new, environmentally-focused decade of the 21st century, stretching the performance envelope of electrification on normal road environments," said Albert Biermann, President and Head of Research and Development Division at Hyundai Motor Group. "RM20e represents a revolutionary new chapter of electrified performance for the Racing Midship series, and our N engineers continue to garner valuable insights in the arena of zero-emission performance dynamics."

The mid-engined, rear-wheel drive RM20e features a powertrain that achieves 810 horsepower and 708 pound-feet of torque thanks to its electric motor. It can get from zero to 62 mph in less than three seconds and to 124 mph from a standstill in 9.88 seconds.

Hyundai says that the RM20e combines "race car-like levels of performance, balance, braking, and grip while retaining daily-driver quietness, responsiveness and road-going capability".

The propulsion system driving the car, as well as the equipment that helps it achieve the "race car-like levels of performance, balance, braking, and grip" are part of Hyundai's larger plant to develop hybrid, plug-in hybrid, battery, and fuel cell electric vehicles.

Hyundai isn't working alone. The company has formed a strategic partnership with Rimac Automobili to co-develop battery and fuel cell electric vehicle prototypes.

Additionally, Hyundai Motor Group, the parent company of the Hyundai, Genesis, Kia, and new Ioniq brand, has committed to addinng 44 "eco-friendly" models by 2025.

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The Kia Sorento has undergone a bold redo for 2021

Photo courtesy of Kia Motors

We already knew what the redesigned 2021 Kia Sorento would look like thanks to its global reveal in March. Now we now what the U.S.-spec will be getting.

The Sorento will be available to U.S. customers in a new X-Line trim. It features a one-inch lift resulting in improved approach and departure angles. The grade also includes all-wheel drive with Snow mode, and a more robust roof rack.

201 Kia Sorento SX The Sorento has a new, sturdier roof rack.Photo courtesy of Kia Motors

Kia will offer the Sorento with four engine options in the U.S. The base power plant is a 2.5-liter four-cylinder that is paired with an eight-speed automatic transmission. The engine achieves 191 horsepower and 182 pound-feet of torque. It achieves 27 mpg combined. Front-wheel drive is standard with this engine and all-wheel drive is available.

Buyers will be able to upgrade the base model Sorento to get a turbocharged 2.5-liter four-cylinder engine under the hood that delivers 281 horsepower and 311 pound-feet of torque. The engine is paired with an eight-speed wet-clutch dual-clutch transmission - the same as what is offered in the Hyundai Veloster N - and is expected to achieve 25 mpg combined. Front-wheel drive is standard with this engine and all-wheel drive is available.

The front-wheel drive Sonata Hybrid will feature a turbocharged 1.6-liter four-cylinder engine that is paired with a 1.49 kWh lithium-ion polymer battery pack, 44.2 kWh electric motor, and six-speed automatic transmission.. That powertrain produces approximately 227 horsepower and 258 pound-feet of torque. That's more powerful than the standard four-cylinder in the 2020 Sorento but less horsepower than buyers would get with the 2020 Sorento with a V6. Kia says the model gets 37 mpg combined.

201 Kia Sorento X-Line The new Sorento X-Line model features black design accents and wheels.Photo courtesy of Kia Motors

That same engine powers an all-wheel drive plug-in hybrid variant of the model that will be available in 2021 and feature 261 horsepower and 30 miles of all-electric range.

U.S. drivers will be able to configure the model with either 4+2 or 5+2 seating. The three-row SUV offers best-in-class front and rear legroom and overall interior passenger volume.

The fully upgraded interior includes a standard 8.0-inch infotainment touch screen that gets bumped up to a 10.25-inch screen in higher trim levels. An available 12.3-inch all-digital instrument cluster is available. There are eight USB charging ports (six in the LX model) and the larger screen allows for dual-phone Bluetooth Capability.

2021 Kia Sorento The interior of the Sorento features a new design for the automaker.Photo courtesy of Kia Motors

Opting for a system with UVO telematics adds cloud-based connected routing that allows navigation to be adjusted in real time according to evolving traffic and road conditions. There’s also weather information for up to 25,000 cities, voice assistant functionality, keyless entry user profiles, smart speaker integration, and advanced notifications for things like extended idle times and rear occupancy alerts. The system will automatically contact 911 should it sense that an airbag has deployed.

For the first time, Kia offers the model with on-demand Find My Car functionality with surround view technology that captures images of the vehicle’s surroundings then pushes them to the Kia Access Uvo app to aid in location. Additionally, last mile navigation provides walking directions to a final destination if the vehicle is parked between 0.1 and 1.2 miles away from the destination as entered in the navigation system.

A 12-speaker Bose sound system and wireless charging capability is available.

2021 Kia Sorento A 10.25-inch infotainment touch screen is available, Photo courtesy of Kia Motors

Kia has given the Sorento a host of standard safety features including forward collision avoidance assist, lane keeping assist, lane departure warning, and rear occupant alert. Blind spot collision avoidance assist, passenger safe exit, and blind view monitor technologies are available.

The 2021 Sorento is assembled in West Point, Georgia alongside the Telluride and the K5.

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