Minor concessions in comfort return huge gains in driver engagement. Buying a performance car often costs more than money; it costs comfort and convenience. If you're buying a 2020 Honda Civic Si, though, it doesn't have to. The Civic Si is essentially a mono-spec vehicle. As such, it rings in at just $26,155, making it one of the cheapest sports cars on the market in the best way possible. For that price, you get 31 more horses than a standard Civic, two-mode electronically controlled dampers, and a limited-slip differential. We spec'd ours with the $200 High-Performance Tire (HPT) option, but aside from that, all you could add to this car are some dress-up parts, a wireless phone charger, and an…