Proton Preve REEV Revealed
Late September, Proton unveiled at its headquarters in Shah Alam, Malaysia the Preve REEV prototype. (
This is a range-extended electric car based on the conventional Preve model.
It has 15.7 kWh worth of lithium-ion pouch cells (stated energy density at the cell level is 163 Wh/kg), which should be enough to drive over 50 km (31 miles) in all-electric mode.
An 80 kW outer-rotor PMSM type motor with 170 Nm of peak torque enables it to go up to 128 km/h (80 mph) and accelerate from 0-100 km/h (62 mph) in a not so thrifty 14.7 seconds.
There is also a small 1.3-liter engine, which serves as backup.
On the ECE R101 test cycle, fuel economy stands at just 0.82 l/100 km (but only for the first 100 km when the battery pack is charged). Then the 1,724 kg (3,800 lbs) car must consume much more fuel.
“According to the Proton engineers manning the booth, the more powerful generator engine allows the Preve REEV to maintain highways speeds even when the batteries have been exhausted, as the more powerful engine can now produce enough power in real time to keep the car going at high speeds.”
“It’s a prototype to test the REEV system, so the engine bay packaging hasn’t really been done to production car standards. As a result, the engine is mounted high, and the engine hood had to be modified with a bump to clear the engine. The 15.7 kWh lithium ion batteries are mounted under the floor, and the fuel tank has been moved a little to the rear to make way for this.”
Here are some additional details: