Most times, people get curious to know if at all, there are any differences between the Honda Accord and Honda Civic SI simply because both come with prices similar to each other. The best way to differentiate between the two is by comparing their trim levels, i.e., Accord LX and Civic Si sports sedan. In terms of price, Civic Si sports sedan can be gotten for $21,905, whereas the price for Accord LX starts at $21,765.
The base model of Honda Civic SI comes with a 2.0L inline-4 engine, and this can produce 197 hp at 7800 rpm. In contrast, the base model of the Honda Accord, i.e., Accord LX, comes with a 2.4L inline-4 engine, which is fitted together with a 5-speed manual transmission gearbox. Unlike Civic SI sedan that produces 197 hp at 7800 rpm, Accord LX produces 177 hp at 6,500 rpm. When you compare the curb weight of the two, Accord LX has a curb weight of 3230 lbs, whereas Civic SI sedan has a curb weight of 2895 lbs.