Lexus RX400H 2006 News

Ten years.The average life expectancy of a Hybrid car. The average number of years it would take to break even in fuel savings after investing in a premium diesel engine.And the average number of years that some industry experts expect the current crop of petrol engines with manual transmissions to last before emissions standards render them useless.A sobering statistic, yes, but for years manufacturers have been working around the problem of emissions, pollutants, and waste to produce not only a cleaner, eco-friendly car, but one that does not compromise on performance, luxury or price.Though you would not know that this was the future of motoring from the empty green stands at this year’s show.The place to show off the future tech is, as always, the motor show stand, and this year saw an absence of previous shows’ futuristic displays of alternative fuels.However, there were some exciting models that are not simply concept, but close to, or in, production.Saab brought out its BioPower models, which are specifically designed to run up to 90 per cent ethanol - though the car can run on petrol if an ethanol pump cannot be found.Saab claims the use of ethanol as an environmentally friendly renewable fuel source with low emissions. And the green goodness produced by the crops such as sugar cane from which ethanol is produced can statistically counteract the resulting emissions from both the manufacturing process and the cars that use the fuel.Ethanol’s premium over petrol at the bowser is also supposedly negligible.While BioPower production cars were on display, the show is stolen by the Aero X concept that floored the floor at Geneva.Running a 2.8-litre, twin-turbocharged V6 engine and with a jet-fighter inspired design and cutaway cockpit (even the wheels look like propellors), the 100 per cent ethanol green machine claims no carbon emmissions while producing a supposed 4.9 second 0-100km/h sprint time (it is yet to be taken to a drag strip for official performance testing). Ethanol and performance?Theoretically, no problem…But the biggest selling production alternative is still the petrol-electric hybrid.Honda’s Civic Hybrid and Toyota’s Prius models have the market almost exclusively to themselves, but the luxury genre has entered the greenhouse with Lexus.Toyota has lent its technology to sister company Lexus this year with the GS450h, and more recently, the big RX400h SUV which sits atop the Lexus stand.This uses the combination of front and rear electric motors with a 3.3-litre V6 petrol engine to power the car.When accelerating, the systems work together to give the car a combined 200kW, and capturing the energy usually wasted during deceleration and braking to recharge the electric motor. So no cords or power points necessary.There is a catch - the estimated life of the battery in this type of hybrid is estimated at ten years.As no hybrid has been around that long (the Prius first hit the market in 1997), and Toyota has never replaced a hybrid’s battery as yet, we will have to wait until 2007to see whether we have power, Y2K, or the start of expensive battery replacements.And it will be in 2007that we slap eyes on Lexus’ (and the worlds’) first hybrid V8; the AWD LS600hL limo version of the petrol LS460 seen at this year’s show.Not to be outdone, BMW is scheduling a hydrogen duel-fuel V8 for 2008, which combines the company’s stalwart 4.4-litre petrol engine with liquid hydrogen fuel cells.It is being kept under wraps for the moment, and the fact that hydrogen would cost over $4 a litre here does not make for a clean start in Oz.But while some of this cool tech was never going to make it to Sydney, the anticipated concept-come-production-car, the Peugeot 307CC Hybride diesel, was due to be revealed – and wasn’t. Reliable technology? Hmmm.The 307CC Hybride is a cool concept. The combination of a diesel engine with an electric motor in the cool convertible produces a teeny fuel consumption figure of just 3.7L/100km.Unfortunately, like so many of the fantastic fuel alternative ideas and ideals, the tech is too expensive at present to make a production car viable, and its release is scheduled for 2010.Not to mention the fact that it missed the plane to Sydney from the Paris show, and we had to settle for the new 207 and a half-naked woman on the stand instead (yes, we are mentioning her again – but that particular model was a literal show-stopper).One thing is for sure: environmental concerns are weighing heavy on all car maker's strategic decisions for new models. But at this stage most are still not revealing their long term plans to deal with emissions and fuel efficiency.Who knows what kind of alternative fuels and cars will be on the market in ten years time? And will the old Prius be running, or running out of battery?Either way, it won’t be long before we are all driving with a smug, earth-saving smile of some sort on our faces.Hopefully, the future of green motoring will be cars like the Aero X…

It's hard sell, but Lexus thinks it can convince enough buyers to move into its new 400h. The 400h is the hybrid version of the RX350 and commands a $10,000 premium over the Sports Luxury petrol RX or a tick under $20,000 for the entry Sports RX. So the recommended retail of $94,100 is a fair sting for what is essentially a compact luxury SUV. Despite the cost drawbacks of wanting to go green Lexus says it has three months worth of orders and figures the 400h will account for about 20 per cent (1500 cars) of the RX volume in Australia next year. Since it first went on sale in the US in April last year 33,000 have been sold which accounts for 22 per cent of total RX sales. The 400h is based on the superseded 3.3-litre petrol engine which made way for the 3.5-litre RX350. Lexus says the new engine was unavailable for the world launch last year. The 400h joins Toyota's Prius and the Lexus GS450h sedan and Honda Civic hybrid as the list of petrol/electric vehicles grows in Australia. Next year Lexus will launch the world's first petrol/electric V8 hybrid, the LS600hL. So what are the benefits of having such an SUV wagon? Lower fuel consumption (8.1litres/100km), reasonable performance and vastly lower emissions (192grams/km) which on Lexus's figures is about 58 per cent of those of the nearest similar petrol engine. The hybrid incorporates three electric motors/generators while a compound planetary gear set in the transaxle acts as a power splitting device and electronically controlled continuously variable transmission to drive the front wheels. The front and rear main electric motors are used for normal starts and when more urge is required the third electric motor fires up the petrol engine which works in tandem with the other two electric motors. As in existing hybrid cars, the petrol engine switches off when the vehicle stops while the electric motors are ready for starts. Using the brakes makes the two main electric motors act as generators which help slow the vehicle down and send electric power to the battery. The Electronic Continously Variable Transmission is the essence of the hybrid which links the two 650-volt electric motor/generators and the petrol engine through the planetary gear set. Even the air-conditioning can be powered by electricity when the petrol engine is not functioning, as in stopping at traffic lights. The petrol V6 engine provides 155kW of power and 288Nm of torque while the main front electric motor generates 123kW and 333Nm. The rear electric motor is good for 50kW and 130Nm. The total system (petrol/electric) puts out 200kW with the petrol component driving the car and driving the third motor/generator to charge the battery. Lexus claim the 400h gives the luxury arm of Toyota a point of difference in the showroom. Already the Lexus GS450h powered by a mix of electric power and the 3.5-litre petrol engine is exceeding sales of the diesel BMW 530i and Jaguar S-Type turbo diesel. Lexus says the 400h has the advantage over diesels in that there is no mess at the bowser and there is no need for particulate filters. ON THE ROAD THERE are no compromises with the RX 400h something Lexus knows is vital to the market. Whereas there are compromises with diesel cars in terms of messy, smelly bowsers and soot filter replacement there is no such baggage with hybrids. About the only known hiccup is battery life. The 400h uses three electric motors and while there is no hard and fast evidence, Lexus says the life expectancy is more than 10 years. Lexus is unsure about battery life because it says it hasn't had to replace one. A replacement battery would be around $3000-$4000 but probably would be an issue for a used buyer. Inside the three-binnacle display remains except a power meter replace the tacho on the left. Surprisingly the 400h is a little soft on take off despite the factory claiming 7.6sec for 0-100km/h. There is not as much launch as one would anticipate particularly as take-off is powered by the electric motors which develop maximum torque at stall. And if you mash the accelerator everything starts to get a bit noisy, another surprise when Lexus is known for its refinement. On the drive in suburban Sydney and out to Camden in the south-west, the brake pedal felt a little soft and spongy, perhaps a result of the regenerative set-up of the stoppers. Once the 400h finds its legs and is up and running all is fine. The rolling performance is as good as any Lexus. The RX 400h shares a lot of kit with the RX 350 Sports Luxury version like 18-inch alloys, bluetooth, rear view camera and rear guide assist, touch-screen navigation and a fancy 11-speaker Mark Levinson sound system. What it gains over the RX 350 Sports Luxury is the VDiM (Vehicle Dynamics integrated Management System) which tells the rear electric motor to provide torque to the rear wheels to maintain stability, seat heaters up front, leather steering wheel instead of woodgrain and metallic trim on the shifter and surrounds as well as centre console. On the 70km launch drive with two up fuel consumption was 8.3-litres/100km from a best just below 8-litres to a touch over 8.5-litres. But fuel consumption is not the decisive factor in the buying decision. It is only a part of the picture, emissions and a machine which is seen to be a bit mean around town yet remains green is the essence of why people will ante up almost $100,000 for an electrified Lexus.

"We see it as a segment buster," Grant says. "It competes against nothing because there is nothing like it available."Lexus has dubbed the petrol-electric RX as a "luxury performance hybrid SUV", making it the second new hybrid model after the GS450h to sport a Lexus badge this year."Final specifications for the car are still under discussion but it will arrive as a true Lexus," Grant insists. "We always strive to get as much specification as possible in a simplistic model line-up at a realistic price point."While conceding some may see it as odd that the RX400h uses the old 3.3-litre V6 from the superceded RX330 rather than the all-new 3.5-litre from the new RX350, Grant says it is fully consistent with Lexus development policy."These sorts of product discussions are continuous," Grant says. "The next step in this line of hybrid development may be a larger petrol engine but just as easily it could be a smaller, more efficient petrol engine and a more powerful electric motor to increase power output."It is an open-ended discussion and really there is no set-in-stone policy direction."Rated a SULEV (Super Low Emissions Vehicle) in the US, the RX400h will carry a fuel economy rating for Australia of 8.1 litres per 100km, which is 3.0 litres per 100km more efficient than the all-petrol RX350.The technology is along the same development lines as the GS450h and the luxo-pack LS600h long wheelbase which will go on sale in Australia early next year. The main power source is the 3.3-litre DOHC V6 modified slightly from its RX330 incarnation to produce 155kW. That drive is enhanced by a bank of three electric motors which feed in extra drive when demanded by the car's ECUs.While the full available powers from petrol and electric sources — the 298kW (400hp) that the car is named for — are never available at the same time, the hybrid RX is rated at 200kW with the extra urge obvious at launch and when called on for overtaking.The power split from the electric motors is an additional 123kW to the front wheels from one motor and another 50kW to the rear wheels from a second.The third motor starts the petrol engine (which shuts down at stoplights), regulates the continuously variable transmission's ratios and generates electricity.When called on for maximum acceleration, the RX400h gets away from standstill with V8-like urgency. Lexus Australia claims it will put the 0-100km/h sprint behind in a creditable 7.9 seconds, although figures out of the US suggest closer to 7.3 seconds for the sprint.In common with other Toyota and Lexus hybrids the system collects energy from regenerative braking, storing the harvested electricity in the bank of nickel-metal-hydride batteries hidden away under the floor behind the rear seats.Acceleration is seamless, aided in no small part by the CVT which is in sharp contrast with the rather coarse note of the 3.3-litre engine.The dash layout is in keeping with other hybrids with engaging displays illustrating the ebb and flow of electric energy to and from the drive wheels. In place of a tachometer there is a largely-for-show power-usage display that can be effectively monitored only at the cost of not watching the road.Do hybrids have a future in Australia? carsguide.com.au

One of the headline acts will be the French star of recent independent crash tests - the Citroen C6 - which has been acclaimed as the safest car yet tested by the New Car Assessment program.The C6, set to go on sale in Australia by the middle of the year, is the fi rst car to earn the maximum four stars from Euro NCAP for its pedestrian safety rating, as well as a maximum fi ve stars for occupant protection.It's also won an award as the world's most beautiful large sedan.The C6 is offering two V6 engines - a 2.7-litre 150kW turbo diesel or a three-litre 155kW petrol engine; both drive the front wheels via a six-speed automatic gearbox.Alfa Romeo's 156 range brought the Italian brand back to the fore in Australia with fl air and passion. It's replacement, the 159, continues in that tradition. It will offer more modern drivetrains - and even a V6 with Australian roots - when it hits the market mid year.Designed by Giorgetto Giugiaro and the Alfa Romeo Styling Centre, the new car will come in both front and all-wheel drive versions, with the Q4 permanent four-wheel drive system using three diffs to split drive.The Alfa Romeo 159 is the first of a whole family of new Alfas due over the next two years, including the Brera.Lexus will be the fi rst car maker to offer a luxury hybrid model, with its GS petrol-electric hybrid offering plenty of performance with the thirst and emissions of a two-litre.The Toyota-owned luxury brand also has a hybrid version of the RX SUV but the company's stand in Adelaide will feature the RX350 - which sees the looks get a nip and tuck, with a new more-powerful and more fuel-effi cient engine beneath its sculpted snout.When Volkswagen went back to the factoryowned subsidiary, they announced high hopes of surpassing 20,000 units by now. They haven't got there yet but with more than 15,000 sales last year the German car maker is on the right track.The prestige segment will see the Passat return with a vengeance this year, with direct-injection two-litre petrol and turbo-diesel engines, or a V6 petrol engine, on offer in either sedan or wagon body style.The sales have had a boost from the new Golf and the newly-introduced (and keenly-priced) Jetta, giving the German car maker plenty of ammunition to work with.Peugeot will give Adelaide show-goers a look at its new 407 Coupe, a sleek, powerful and attractive 2+2 that will be offered in petrol and diesel models on sale in Australia as the show opens.The coupe will be offered with a three-litre 155kW/290Nm V6 petrol engine with either a sixspeed manual gearbox or new six-speed automatic transmission for $65,990 and $68,190 respectively.The sleek Pug will also be offered with a 2.7-litre V6 HDi twin-turbo diesel offering 150Kw and 440Nm with a six-speed automatic gearbox as standard. It will be priced at $72,500.Porsche chose to introduce the Australian motoring media to the Cayman S in the countryside surrounding Adelaide and its fi tting the German brand returns to the motor show this year with the same model.The Cayman S is more than a Boxster with a roof, sharing inlet systems and some other nice bits with the 911.The bulk of the DNA traces back to the midengined Boxster, which gives the two-seater Cayman the same basic powerplant - although slightly larger - plus the superb road manners and balance that has made the convertible a popular option among Porsche buyers.Chrysler has returned to the Australian market with plenty of enthusiasm and some interesting product, the latest and most powerful example of that statement being the 300C sedan.Soon to be followed by diesel and wagon variants, the V8 300C has serious visual impact and packs plenty of equipment to take on the big locally-built luxury sedans.The Chrysler has the added attraction of displacement on demand, which drops fourcylinders from use to save fuel when light throttle loads are required.