Highlander and Hybrid
Hybrid Synergy Drive is available on two Highlander models: a base Highlander, priced at $44,205 and the Highlander Limited, with an MSRP of $53,145. Our test vehicle was the latter.
The five-passenger base Highlander Hybrid includes 6-speaker AM/FM/CD audio system, climate control, 60/40 split folding rear seat, tilt steering, illuminated entry, power windows and locks, fog lamps, cruise control, keyless entry and cloth seats.
The Limited model adds 7-passenger seating with a third row seat, 8-speaker JBL audio with an in-dash 6-CD changer and steering wheel audio controls, power sunroof, leather seat surfaces and heated power driver and front passenger seats, electrochromic rear view mirror with digital compass, anti-theft system, front seat mounted side airbags and front and rear side curtain airbags.
Both models differ from the conventional Highlander with new 17-inch split five-spoke alloy wheels, chrome accented front grille, restyled front bumper, rear LED tail lamps, and chrome licence plate trim.
Unlike the Lexus RX 400h, which shares the Highlander Hybrid's Hybrid Synergy Drive, system activity is not displayed in a centre console screen, but displayed with smaller, and less intrusive gauges in the instrument cluster. A small display below the speedometer shows the current path of power between engine, motor and battery, while a larger gauge to the left of the speedometer displays the energy generated by the hybrid system measured in kilowatts.
The Highlander also uses a conventional transmission shifter located high on the centre console. There are only five positions - Park, Reverse, Neutral, Drive and 'B'. This latter position maintains engine power (and engine braking) for downhill situations where the Highlander Hybrid might otherwise freewheel.
The leather-covered front seats in our tester were comfortable and provided good leg room. The second row seats also provided good leg room and can "fold and tumble" to expand the cargo area. The split-folding rear seat in the 7-passenger Limited provides room for two small passengers. Access is eased by sliding the second row seat forward, but getting in is not easy. Unfortunately, the third row is not optional. If you want leather, upgraded audio and improved safety features, you must also buy the third-row seat even if you don't need it.
A little math (okay, a lot)
From the point of view of comfort and convenience, there is little to differentiate the Highlander Hybrid from the conventional Highlander. The big differentiator (other than the hybrid drivetrain) is price. The hybrid Highlander costs $7,305 more for the base 5-passenger model (compared to the 4WD V6 model) and $6,545 more for the Limited - not an insignificant amount and one that might make many commuters think "pay me now or pay me later."
NRCan estimates that the cost of fuel for a conventional V6-powered highlander is $1,532 (based on a total annual fuel consumption of 2,220 litres and a lowly per litre price of just $.69). A more realistic price of $1.00 would yield an annual cost of $2,220. Using the city driving rating for the Highlander Hybrid (which is 41% better than the conventional V6), the best-case cost saving over a year would be $910 for a driver who stayed close to home. At that rate, you would have to drive a base Highlander Hybrid 8.0 years and a Hybrid Limited 7.3 years before you reached the break-even point on fuel costs. Of course, as the saying goes, your mileage (and fuel consumption) may vary - as ours did.
While the fuel saving benefits of the Highlander Hybrid may not be readily apparent with this mathematical exercise, there are some other points to consider. The cost savings will increase and the time required to reach break even drop as fuel prices increase. Look a couple of years into the future and imagine a per litre cost of $1.50 and the break even point drops from 7.3 years to 4.8 years for the Highlander Hybrid Limited.
Safety
Another point to consider - the Highlander Hybrid comes equipped with VDIM. VDIM is a Toyotachronym for the equally incomprehensible Vehicle Dynamics Integrated Management. Better to understand what VDIM is and what it can do for you should you and your Highlander Hybrid ever get out of shape.
VDIM is an advanced new stability system that continuously analyzes driver input (steering, braking, acceleration/deceleration) and compares it to the desired, stable operation. When the computer detects any difference between the two, it instantly calculates what action will correct the deviation and appropriately enhances braking and engine output to maintain stable operation.
VDIM sensors detect when either the front or the rear of the car is losing grip, and the system adjusts brake pressure and engine power to maintain maximum control and manoeuvrability.
It sounds like ordinary vehicle stability control, but there is more. Not only will the system intervene by enhancing braking and reducing engine output, it will also optimize steering assist if needed. Within limits - those set by the laws of physics - it will point the wheels where they should be pointed.
In addition to VDIM, the Highlander Hybrid features ordinary vehicle stability control, traction control, and anti-lock brakes.
Passive safety features include dual-stage front airbags with front passenger status indicator, 3-point seatbelts for all seating positions with pretensioners and force limiters for front occupants, ISO-FIX anchor points for child restraint seats and child-protection rear doorlocks.
The 7-passenger model adds front seat mounted side airbags and roll-sensing front and rear side curtain airbags, features that, in our opinion, should be standard equipment in all vehicles.
Driving Impressions
Yet another point to consider, should you at first balk at the $7000 price difference, is power. The Highlander Hybrid has a whole lot more power than the conventional Highlander. The hybrid drivetrain produces V-8 power, while using less fuel than some four-cylinder SUVs that we've tested.
The Highlander Hybrid has nearly 40 more horsepower than the gasoline-powered Highlander (rated at 230 hp). The difference can be felt off the line, accelerating onto the freeway and during passing. Toyota estimates the zero to 60 mph (96 km/h) acceleration time to be 7.3 seconds - very fast for any mid-size - and mid-priced - SUV.
And it goes about this acceleration business very quietly. Under hard acceleration there is a sense of great activity coming from under the hood, but it is distant.
Maybe this isn't such a good thing. Drive around with your foot planted on the floor all day and fuel economy will suffer, even if it is a hybrid under foot.
The interior is well insulated, eliminating all but the most forceful of exterior noises, even when driving in electric-only mode as we did in rush hour traffic. One would expect to hear more external noises when the counter-balancing thrum of the engine disappears.
The only sound to routinely break the silence was an unusual high-pitched whine evident whenever decelerating or braking.
Being the height of summer, we never encountered weather sufficient to test the Highlander's all-electric, all-wheel drive system, nor its sophisticated stability control system.
But we did test the brakes and can report that they are just fine. Regenerative brakes provide incredible and noticeable stopping power. In a panic stop, you had better hope the person behind you is alert or driving a hybrid SUV as well. They are sensitive and take some getting used to, but also very effective.
Conclusion
Consumers can now get the fuel-saving benefit of hybrid power in a mid-size and mid-priced SUV. The premium price for the hybrid option is offset by the enhanced safety provided by VDIM and much improved performance. Packaging other enhanced safety features - side impact and side curtain air bags - with options like the third row seat that some buyers don't want or need, is a negative.
Technical Data: 2006 Toyota Highlander Hybrid Limited
Base price $44,205
Base price (Limited) $53,145
Options None
Freight $1,310
A/C tax $100
Price as tested $54,555
Type 4-door, 5-passenger mid-size SUV
Layout transverse front engine/all-wheel-drive
Engine 3.3-litre V6, DOHC, 24-valve VVT-I (Variable Valve Timing with Intelligence)
Horsepower 208 hp @ 5,600 rpm
Torque 212 lb-ft @ 4,400 rpm
Electric Motor (front) Permanent Magnetic Motor
Horsepower 167 hp @ 4,500 rpm
Torque 247 lb-ft @ 0 - 1,500 rpm
Electric Motor (rear) Permanent Magnetic Motor
Horsepower 68 hp @ 4,610 - 5,120 rpm
Torque 96 lb-ft @ 0 - 610 rpm
HV Battery Sealed Nickel-Metal Hydride
Maximum power output 45 kw
Voltage 288V
Net power, hybrid system 268 hp
Net Torque Output will vary depending on HV battery state and demand on vehicle
Transmission electronically controlled continuously variable automatic transmission
Tires P225/65R17 all-season radials
Curb weight 1,785 kg (3,935 lb.)
Wheelbase 2,715 mm (106.9 in.)
Length 4,710 mm (185.4 in.)
Width 1,825 mm (71.9 in.)
Height 1,745 mm (68.7 in.)
Cargo capacity 1,124 litres (39.7 cu. ft.) behind second row seats
297 litres(10.5 cu. ft.) behind 3rd row seats
Towing capacity Towing capacity: 1,587 kg (3,500 lb.)
Fuel consumption City: 7.5 L/100 km (38 mpg Imperial)
Highway: 8.1 L/100 km (35 mpg Imperial)
Warranty 3 yrs/60,000 km
Powertrain warranty 5 yrs/100,000 km
Hybrid-related components warranty 8 yrs/130,000 km
Grant Yoxon is an Ottawa-based automotive journalist and managing editor of CanadianDriver