Volvo XC90 T8 Twin Engine – Electric Range And Efficiency Test – Video

6 months ago by Mark Kane 6

An interesting follow-up review on the Volvo XC90 T8 Twin Engine by Autogefühl, focuses on the all-electric range and real consumption metrics of the plug-in Volvo.   (see the outfit’s earlier presentation here)

Volvo XC90 T8 Twin Engine

Volvo XC90 T8 Twin Engine

In gentle driving conditions (up to 50 mph / 80 km/h), the plug-in hybrid XC90 was able to travel 34 km (21 miles), which is considerably further than its 14 mile/23 km EPA rating.

Eventually of course, the internal combustion engines kicks on, and after 44.3 km (27.5 miles), the average fuel consumption was 1.7 l per 100 km (62 miles).

Going further (on just petrol), after 72.8 km (45 miles) the average jumped to 4.3 l per 100 km, with extended consumption up to 10 l/10 km.

Well, it is a heavy SUV after all, and with just a 9.2 kWh battery to utilize (with just 6.7 kWh usable), but still a pretty decent result – especially for those driving anything under 50 miles in a day.

Quick specs for the Volvo XC90 T8 Twin Engine:

  • 9.2 kWh (6.7 kWh usable) battery and up to 14 miles of EPA all-electric range
  • AWD with peak 60 kW electric motor (rear) and 318 hp gasoline engine (front)
  • 5.9 seconds 0-60 mph (nearly 100 km/h)
  • 7 seats

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7 responses to "Volvo XC90 T8 Twin Engine – Electric Range And Efficiency Test – Video"

  1. pjwood1 says:

    I’m guessing it doesn’t get 5.9 seconds 0-60 without the engine. Nice interior.

  2. Terawatt says:

    In hybrid mode you get over 400 up, but in all electric only 80. So nobody will be driving it in pure electric mode…

    And with 6.7 kWh to use, it’ll cycle the battery at least once a day, leading to fairly rapid degradation. After three years and 1000 cycles it’ll have half the range, and increased consumption.

    Hybrids with such awful electric ability stuck!

    1. pjwood1 says:

      I really like the Volvo. The 6.7kwh represent 74% of a window, to 9kwh of battery. So, yes, we’d be sure to mow through the 6.7 every day, but never would that represent a full-cycle. I’d be more concerned about its anemic electric mode. The video of the guy driving highway below 50mph says it all. That wasn’t just to conserve. A little bit of hill, and he’d have been slowing further.

      Inside EV’s has presented the data, but we haven’t discussed Depth of Discharge (DOD) much. Here, it isn’t so bad. Chevy was ubber conservative, at ~65% of the original Volt. I forget precisely, but believe Tesla, when you range charge, uses a full 90% discharge window (hence, selective range charging). Other makers seem to be settling at 75% – 85% (including newer Volt).

    2. Mr. M says:

      Therefore PHEV batteries are desgned to withatand more cycles than a BEV.

  3. Steve says:

    If 6.7kWh is usable… and it can go 21 miles… that’s 319Wh/mile… not bad! Right in the zone.

  4. Kim says:

    What a joke for a car. They made this to get some tax reduction somewhere. Nothing much to do with an electricl car