Thoroughly thought-Provoq-ing

Thoroughly thought-Provoq-ing

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Photos by -Autonet.ca
Staff
Published: 09 01 2008

Cadillac's latest concept has a name that's about as foreign as its choice of fuel. The Provoq is the latest concept to use General Motor's E-Flex propulsion system, which combines the fifth-generation fuel cell system and a lithium-ion battery to produce a vehicle that uses no petroleum and whose only emission is water.

GM says that the Provoq could drive 483 km. on a single fill of hydrogen (450 km. on hydrogen, 32 km. on pure battery electric power). It has a 0-60 mph time of just 8.5 seconds and has a top speed of 160 km/h.

The technology doesn't stop there though. The Provoq also features a solar panel integegrated into the roof to help power onboard accessories, such as the interior lights and audio system, as well as front grille louvers that close at highway speed to enhance aerodynamics, and open at low speed to provide maximum cooling to the fuel cell stack.

The concept shares design features with the latest-generation Cadillac vehicles such as the CTS. In other words, it wouldn't be out of place if it were part of Cadillac's lineup today.

"From the strong, shield grille and vertical headlamps to the crisp body lines, the Provoq is instantly recognizable as a contemporary Cadillac," said Hoon Kim, exterior lead designer. "Like the new CTS, it is bold and expressive, but there is enhanced shape between the edges – it’s a new proportion for crossovers, with a fast, almost coupe-like rear."

Even the vehicle's fender-mounted charge ports (which allow overnight, plug-in charging that extends the driving range) have a satin-chrome appearance that incorporates an amber light to indicate the system is charging and a green light to indicate when charging is completed. Rather than hide them, the charge ports were actually made to be design elements of the Provoq.

Inside, the Provoq seats up to five people, and Cadillac is quick to point out that the fuel cell powertrain does not intrude on passenger or cargo room. The hydrogen fuel tanks are mounted beneath the cargo floor, with the storage batteries located at the center of the chassis. The fuel cell stack is located under the hood, giving the Provoq the interior layout of a conventional crossover – including a full cargo area and a 60/40-split folding rear seat.

Provoq specifications:

Vehicle type:

four-door crossover

  • Wheelbase (in / mm):

    114.4 / 2906

  • Length (in / mm):

    180.3 / 4580

  • Width (in / mm):

    72.8 / 1850

  • Height (in / mm):

    67 / 1703

  • Track (in / mm):

    64.5 / 1639 (front and rear)

  • Powertrain:

    88 kW fuel cell w/ co-axial electric front drive; independent rear wheel motors

  • Suspension:

    four-wheel independent; MacPherson-strut (front), multi-link (rear)

  • Brakes:

    four-wheel disc; brake-by-wire; regenerative electric

  • Wheels:

    21-inch x 6.5-inch aluminum

  • Tires:

    205/60R21 Michelin Green X energy-saving

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