Apologies if this question has been asked before, but I'm very interested in purchasing a used Spark EV and I'm wondering what the real world differences in performance are between the 2014 and 2015 model years. From what I've read, the 2015 has a battery pack using LG Chem cells instead of A123, and a shorter final drive of 3.87. In addition, the 2015 seems to have considerably less torque (400 vs 327 lb-ft). Does the adjusted gear ratio make up for the lost torque? Do they both feel about the same in acceleration? I've found that 14s are much harder to find, but I'm looking forward to the instant torque shove of an electric car and I don't want to lose anything by getting a 15.