The Citizen (KZN)

Lexus is a gentleman’s GT

ʂ Aerodynami­cs combined with comfort, speed and state-of-the-art architectu­re. NOT A CHEAP BUY, BUT WELL-PRICED AND A LOT OF CAR FOR THE MONEY

- Glen Hill

In the LC 500 Lexus has carved itself a niche – a place at which luxury, performanc­e and price converge uniquely. The LC 500 is a gentleman’s GT.

The distinctiv­e styling of the LC combines traditiona­l Lexus cues, like the spindle grille, with features unique to the LC – possible, in part, because designers had the benefit of working on a completely new GA-L (Global Architectu­re –Luxury) platform, designed for new generation­s of front engine/ rear-wheel drive Lexus models.

This brought its own set of challenges in that engineers had to build a car that remained true to the concept of LF-LC’s defining low roof and hood lines, while at the same time ensuring that packaging allowed the LC to match the concept in also accommodat­ing a sport suspension and 21” forged alloy wheels.

At the same time, all powertrain, chassis and safety components had to be housed and comfortabl­e headroom had to be provided in the cabin.

The LC had to walk the concept’s talk, so to speak.

For example the front suspension components went through six months of reworking the multi-link suspension control arm geometry until the required low hood line was achieved, without compromisi­ng suspension performanc­e. Other clever solutions were developed, such as the new ultra-slim LED headlight unit design, which allowed the LC to retain exceptiona­lly short front overhangs.

The sweeping roofline tapers rearward between muscular, sloping fender tops, underscori­ng the car’s wide and stable stance, and the Lexus spindle shape is repeated in the rear fascia.

Large ducts feed air into the rear wheel arches, the airstream exiting smoothly across the tyre sidewall to bolster straight-line stability and steering responsive­ness.

The underbody is almost completely smooth, and even the rear muffler, angled like a diffuser, plays a role in aerodynami­c performanc­e. The available active rear spoiler automatica­lly deploys when vehicle speed rises above 80 km/h, reducing lift to enhance high-speed stability.

Aero ducts are featured just forward of the rear wheel arches, serving a highly practical function as well as contributi­ng to the dynamic power of the LC’s styling. These feed air into the wheel arch, which then exits smoothly across the sidewall of the tyre. This contribute­s to the car’s high-speed straight-line stability and steering responsive­ness and generates improved grip feel from the rear tyres, for example when changing lanes.

Although there is a hybrid derivative available in some overseas markets, SA is getting only the naturally aspirated V8.

The fact that these are probably a dying breed make this configurat­ion LC 500 even more desireable.

The LC 500 produces 351kW and 450Nm which, Lexus tell us, will propel the car from zero to 100km/h in less than 4.7 seconds.

Engineers have worked to combine the sounds produced both by the air intake system at the front and the exhaust system at the rear to create what they describe as a “concert hall” effect inside the cabin, both as the car gains speed and slows down.

The front air intake of the LC 500 V8 is fitted with a sound generator, with carefully engineered dimensions tuned to maximise the desired sound frequency and level. The opening is connected directly to the cowl reinforcem­ent, so sound reverberat­es within the enclosed space, resulting in a natural, emotional quality.

At the rear, additional external valves have been introduced in front of the main muffler, which open and close according to the driver’s use of the throttle and the drive mode selected. The length and diameter of the main muffler pipe has also been adjusted to generate a satisfying exhaust note. The driver can adjust the natural exhaust sound level via the Drive Mode Select system. The D-4S injection system uses direct fuel injection that allows a high compressio­n ratio (12.3:1), augmented by port fuel injectors to enhance lowspeed response. The Lexus LC 500 features a 10-speed automatic transmissi­on. Smaller and lighter than some 8-speed units, this new transmissi­on executes shifts at speeds rivalling dual-clutch transmissi­ons, yet with the seamless performanc­e and smoothness of a torque converter automatic. The transmis-

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