So some of this is using Google Gemini, so take it for what it’s worth. The wife and I just did a 560 mile trip in one day, and it made me wonder how the gas hungry TRX would stack up against a Terra Harvester and a Terra EV. The trip took us 9 hours with two stops. So what follows is some Google help combined with real world data.
In the TRX we used 38.576 gallons at an average cost of $5.638 a gallon, we averaged 14.439 miles per gallon, and spent $217.50 on gas.
The Google Parts:
The Missoula, MT to Anacortes, WA route via I-90 W and I-5 N covers approximately 545–550 miles.
Comparing the travel time and operational cost between the Scout Terra EV (all-electric) and the Scout Terra Harvester(range-extended hybrid with a gas generator):
In the TRX we used 38.576 gallons at an average cost of $5.638 a gallon, we averaged 14.439 miles per gallon, and spent $217.50 on gas.
The Google Parts:
The Missoula, MT to Anacortes, WA route via I-90 W and I-5 N covers approximately 545–550 miles.
Comparing the travel time and operational cost between the Scout Terra EV (all-electric) and the Scout Terra Harvester(range-extended hybrid with a gas generator):
Key Powertrain & Efficiency Specs
| Feature | Scout Terra EV | Scout Terra Harvester (EREV) |
|---|---|---|
| Powertrain Setup | Dual-motor All-Electric | All-Electric drive + 4-cyl Gas Generator |
| Battery Size | ~120–140 kWh (estimated) | Smaller battery (~150 mi pure EV range) |
| Gas Tank | N/A | ~15 gallons |
| Total Target Range | Up to 350 miles | 500+ miles total (150 mi EV + ~350 mi gas) |
| DC Fast Charging | Up to 350 kW (800V, NACS native) | Up to 350 kW (800V, NACS native) |
1. Travel Time Comparison
Scout Terra Harvester
- Driving Time: ~8.5–9 hours
- Stops: 1 quick stop
- Total Time: ~8 hours 50 minutes – 9 hours 15 minutes
- Starting in Missoula with a full charge and a full tank gives you 500+ miles of range.
- You can cover almost the entire 545-mile journey on your initial fill/charge.
- You will only need one 10-to-15 minute stop (e.g., around Ellensburg or Cle Elum, WA) to splash 5–8 gallons of gas into the tank to guarantee reaching Anacortes comfortably.
Scout Terra EV
- Driving Time: ~8.5–9 hours
- Charging Time: ~35–50 minutes total (2 fast-charging sessions)
- Total Time: ~9 hours 20 minutes – 9 hours 50 minutes
- At highway speeds (70–75 mph across Snoqualmie Pass and eastern Washington), real-world range drops below the 350-mile EPA target (roughly ~270–290 miles usable at 80%–10% SoC intervals).
- Stop 1: Coeur d'Alene, ID or Ritzville, WA (15–20 mins on a Tesla Supercharger / 350kW DC Fast Charger).
- Stop 2: Ellensburg or Cle Elum, WA (15–25 mins to gain enough top-off for the mountain pass and I-5 traffic).
2. Fuel & Charging Cost Comparison
(Assumptions: Starting with home-charged electricity at ~$0.12/kWh in MT; Public DC Fast Charging at ~$0.42–$0.48/kWh; Regular Unleaded Gas at ~$4.20/gal average across WA/MT).Scout Terra Harvester Cost:
- Home Start Charge (150-mi EV range): ~$5.00 – $7.00
- Gasoline Consumption: (~400 miles driven on gas at ~26–28 mpg = ~15 gallons) ≈ $60.00 – $65.00
- Estimated Total Trip Cost: ~$65.00 – $72.00
Scout Terra EV Cost:
- Home Start Charge (Full Battery): ~$15.00 – $18.00
- Public Fast Charging (Mid-route stops): ~100–120 kWh added at public chargers ≈ $45.00 – $55.00
- Estimated Total Trip Cost: ~$60.00 – $73.00
Summary Direct Comparison
| Metric | Scout Terra Harvester | Scout Terra EV |
|---|---|---|
| Total Travel Time | ~9 hours | ~9.5 hours |
| Required Fuel/Charge Stops | 1 quick gas splash (10 min) | 2 fast-charging stops (40 min total) |
| Trip Energy Cost | ~$65 – $72 | ~$60 – $73 |
| Key Advantage | Faster travel time; zero range anxiety crossing Snoqualmie Pass | Lower routine maintenance; zero tailgate emissions |
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