Something with a 60 mile electric range will likely satisfy all of their day-to-day driving. The generator means they don't have to charge though, so they can still take road trips without worrying about electric range.
In practice though, they're somewhat impractical. You still need an entire ICE drivetrain AND a moderately sized battery and electric motor, driving the price up.
This has been a perfect car for my use case, but the big caveat is my short commute. If your daily commute fits inside that short range (or one way commute if there's a charger at your workplace), this can be a great fit. A+++, highly recommended.
If your work commute is significantly longer than a PHEV's battery range, or if you don't have a convenient place to charge it, then it's a much less attractive proposition.
Most people don't end up charging their battery because it still has an ICE so why bother? So now they have the worst of both worlds. Complex ICE machinery that needs regular service and heavy battery that doesn't end up being used.
You can also have a much smaller engine for a much bigger car, since you only need to cover average not peak power usage.
You also in most designs eliminate the gearbox.
I don't know about the whole world, but in both the US and Europe nearly half of the hybrids on the road are from Toyota, so unless nearly everything else is two parallel drive chains linked with clutches whatever Toyota does is the more common type.
Toyota uses a series-parallel system that works by having a planetary gear system that connects the ICE, a large electric motor, a small electric motor, and a drive shaft all together.
The planetary gear system functions as a power splitting device and a continuously variable transmission. It lets them direct power flow in a bunch of different ways. Here's a summary based on Wikipedia. (MB == the bigger battery, 12V == the regular 12V batter, ICE == the ICE engine, MG1 == the smaller electric motor, MG2 == the larger electric motor):
• Aux power: MB -> DC/DC converter -> 12V
• Charge: ICE -> MG1 -> MB
• EV drive: MB -> MG2 -> wheels
• Moderate acceleration: ICE -> wheels, ICE -> MG1 -> MG2 -> wheels
• Highway: ICE -> wheels, ICE -> MG1 -> MB
• Heavy power, such as on steep hills: ICE -> wheels, ICE -> MG1 -> MB, ICE -> MG1 -> MG2 -> wheels
• Max power: ICE -> wheels, ICE -> MG1 -> MG2 -> wheels, MB -> MG2 -> wheels
• Regenerative braking: wheels -> MG2 -> MB
• B-mode braking: Wheels -> MG2 -> MB, Wheels -> MG1 -> ICE
This is a big part of why Toyota hybrids are at the top of reliability rankings. Compared to a pure ICE they replace the clutch, the transmission, the starter motor, the alternator, the reverse gear set, and the flywheel with the planetary gear power splitting device. the two electric motors, and electronics. The power splitting device has very few movings parts--just the gears themselves, a pawl that can mechanically lock the gears when parked, and fluid pumps. The gears only move by rotating, unlike in a conventional transmission where they also change position. This makes their hybrids mechanically much simpler than a pure ICE.
Data collected across 600.000 vehicles in Europe show that most people don't and that emissions are just a smidge under typical ICE vehicles. If you factor in the high emissions produced during battery productions it looks to be an overall bad package.
The idea itself is certainly good but the real world simply doesn't show it.
https://www.evshift.com/368695/do-people-actually-charge-the...
