Today I bought a 2021 Chevy Bolt LT with 78k miles but in very good shape for $14k. Drove it home but then had to take the SE to work because the Bolt needed charging. Initial observations based on driving them back-to-back:
1) interior of SE is much nicer (duh!), but Bolt isn't as bad as I remembered from test driving one in 2017;
2) SE is quieter;
3) SE is quicker;
4) SE has a firmer ride;
5) SE handles better;
6) SE seems to be at least 10% more efficient (perhaps due to aftermarket tires on Bolt);
7) Regen is more powerful in SE.
Of the above, the first 5 are as you would expect - the SE is a baby BMW with go-kart handling, whereas the Bolt is a Chevy powered by Samsung. It is the last two that are a bit surprising, especially #7.
A) the crowd-sourced default efficiency assumed by ABRP is ~10% higher for the SE, but my initial impression is that the difference is greater than that;
B) the AI overlords claim that max regen in the SE is only 0.19 g for the SE, vs. ~0.22 g in D mode and ~0.3 g in L plus using the paddle. However, the SE clearly stops faster. In D, the Bolt behaves like a car with an automatic transmission, whereas L allows actual one pedal driving, albeit with somewhat longer stopping distance than the Bolt.
Having two contrasting EVs is going to be interesting, but already I would describe it as the Bolt is pleasant enough to drive, but the SE is actually fun.
I'm actually back to my original take from when the Bolt first came out: if you firmed up the suspension and sorted the handling, it would be a really fun car to drive. At the end of the day, though, you'd still have to live with the rental car-ish interior, which makes the whole thought experiment a bit moot.
A more nuanced comparison would be the F56 SE against the new VW ID Neo GTI. Would you trade over 500 lbs for better range, a bit faster acceleration, and 4 doors, or stick with the EV hot hatch equivalent of the Miata?