Walk onto any Changan or Deepal forecourt today and you’ll hit four different acronyms before you’ve even opened a door: HEV, PHEV, REEV and BEV. They all involve a battery and an electric motor, and that’s roughly where the similarity ends. Each one solves a different problem, and the right one for you depends far more on your daily routine and access to charging than on the badge on the bonnet. Here’s the plain-English version.
HEV and MHEV: The Hybrids You Never Plug In
A full hybrid (HEV) pairs a petrol engine with a small battery and electric motor, but you never plug it in. The battery charges itself through regenerative braking and the engine, and the car can run on electric power alone for very short stretches, typically a few kilometres at low speed. A mild hybrid (MHEV) goes even further in the other direction: its electric motor assists the engine rather than driving the car on its own, mainly smoothing out stop-start driving and cutting fuel use slightly. Neither needs charging infrastructure, which makes them the easiest entry point into electrification if you don’t have access to home or public charging.
PHEV: Plug In, But Keep the Petrol Tank
A plug-in hybrid has a larger battery than an HEV, one you charge externally, giving you a genuine electric-only range for short trips, commonly somewhere between 40 and 90km depending on the model. Once that runs out, the petrol engine takes over and drives the car directly, same as a normal hybrid. It’s the middle-ground option: full electric driving for the school run and daily commute, with a petrol engine you can rely on for longer trips without planning around chargers.
REEV: Electric Driving, With a Backup Generator
This is the one that trips people up. A range-extender electric vehicle (REEV) is driven entirely by its electric motor, full stop. The petrol engine never touches the wheels. Its only job is to act as a generator, topping up the battery once it runs low, so the driving experience stays electric even once the battery is depleted.
The Changan Hunter REEV is a good local example of how this plays out in practice. It runs a 31.18kWh lithium iron phosphate (LFP) battery feeding twin electric motors for a combined 200kW and 470Nm, with a claimed 145km of pure electric range before its 2.0-litre turbopetrol generator kicks in, extending total range to around 1,000km on a full tank and battery. You can charge it from a wall socket for daily driving, or simply fill the tank like a normal bakkie when you’re heading further afield. That flexibility is exactly why REEV technology has landed here first in a double-cab bakkie rather than a hatchback, since long-distance capability without depending on public charging matters a great deal on South African roads.
BEV: Fully Electric, No Backup
A battery electric vehicle (BEV) has no petrol engine at all. It runs entirely on its battery, full stop, and needs to be plugged in to recharge. The Deepal S07 is Changan’s example here, running an 80kWh battery for a claimed WLTP range of around 500km. The upside is zero tailpipe emissions and the lowest running costs of the four, since electricity is consistently cheaper than petrol per kilometre. The tradeoff is that your driving range is entirely dependent on charging access, both at home and on the road, with no fallback if a charger is out of order or a long trip runs longer than planned.
Why Battery Chemistry Matters
Most REEVs and a growing number of BEVs sold in South Africa, including the Deepal S07 and Hunter REEV, use lithium iron phosphate (LFP) battery chemistry rather than the nickel-based chemistries common in earlier EVs. LFP batteries are generally more thermally stable and tolerate frequent full charging better over time, which matters if you’re charging daily rather than occasionally. Regenerative braking, standard across all four powertrain types to some degree, recovers energy during deceleration and feeds it back into the battery, extending range without needing to plug in more often. The South African National Energy Development Institute (SANEDI) has recently backed a five-year initiative focused on local battery testing, certification and recycling capability, a sign that the supporting infrastructure for these battery types is still being built out locally rather than fully mature. This sits alongside national policy work like the Department of Transport’s Green Transport Strategy, which has set the broader direction for electrified transport in South Africa even as the on-the-ground infrastructure catches up.
Which One Actually Fits Your Life in South Africa
If you don’t have reliable access to home or workplace charging, an HEV or MHEV asks nothing of you beyond visiting a petrol station as usual. If you have a short daily commute and access to a plug at home, a PHEV lets you drive electric most of the time while keeping a petrol safety net for road trips. If you regularly cover long distances, tow, or work in areas where public charging is sparse, a REEV like the Hunter gives you electric running with a generator you never have to think about. And if your driving is mostly urban or you’re set up with reliable home charging, a BEV like the Deepal S07 offers the lowest running costs and the simplest driving experience, provided the charging network holds up its end.
Not sure which powertrain actually suits your driving pattern? Get in touch with Top Chinese Car Brands, or visit our Changan brand page to compare the Hunter REEV and Deepal S07 side by side.
