The Honda Civic coupe was discontinued after the 2020 model year, ending a body style that had been part of the lineup since the 1973 Civic. The 2020 Civic Si Coupe represented the last front-drive sport coupe from Honda in the US market. The 2025 Civic Sedan, now in its second year of a mid-cycle refresh, is the current Civic — available as a standard 2.0L sedan, a hybrid, a Si, or a Type R. Comparing the 2020 coupe against the 2025 sedan is a genuine enthusiast question: do you buy the last of a dying body style, or the most practical version of the current car?
This comparison covers the 2020 Civic Si Coupe (10th generation) against the 2025 Civic Sedan in both Si and Sport Hybrid trims. All figures are from Honda Newsroom specification sheets, Car and Driver testing, and EPA fuel economy data.
Body Style and Platform — What Changed
The 2020 Civic Si Coupe is a 10th-generation car built on the 106.3-inch Wheelbase platform. It is a true two-door coupe with frameless doors, a 176.9-inch overall length (4.7 inches shorter than the sedan), and a 54.9-inch height — the lowest Civic since the CR-X. The standard 2020 Si coupe weighed approximately 2,877 pounds. The 2025 Civic Sedan is an 11th-generation car on a longer 107.7-inch wheelbase, measures 184.8 inches long (2025 refresh), weighs 2,877-2,952 pounds depending on trim, and has four doors. The coupe body style is no longer in production and has no direct replacement. Source: Honda Newsroom (2020 Civic Si Coupe specifications, 2025 Civic Sedan specifications).
The coupe did not offer a rear seat suitable for adults over short trips — 34.6 inches of rear legroom versus the sedan’s 37.4 inches. The 2025 sedan is genuinely a five-passenger vehicle. The coupe’s trunk volume was 12.0 cubic feet; the sedan offers 14.8 cubic feet. If you carry passengers or cargo with any regularity, the sedan is the only practical choice.
Si Powertrain — 2020 Coupe vs 2025 Sedan
Both the 2020 Si Coupe and the 2025 Si Sedan use Honda’s L15 series turbocharged 1.5-liter inline-four, a 6-speed manual transmission, and a helical limited-slip differential. The difference is in the calibration: the 10th generation Si produced 205 horsepower at 5,700 rpm and 192 lb-ft of torque at 2,100 rpm. The 11th generation Si produces 200 horsepower at 6,000 rpm and 192 lb-ft at 1,800 rpm. The 11th gen lost 5 hp but makes peak torque 300 rpm sooner. Both require premium unleaded fuel (Honda recommends 91 octane, though the ECU can adapt to 87 with reduced performance).
Car and Driver tested the 2020 Si sedan AT 6.4 seconds to 60 mph and 14.9 seconds in the quarter-mile at 93 mph. The 2025 Si sedan tested at 6.6 seconds to 60 mph and 14.9 seconds at 95 mph. The 2020 Si will feel slightly quicker in everyday driving due to the 5-hp advantage and the coupe’s lower curb weight (approximately 2,877 lbs vs 2,952 lbs for the sedan), but the difference is within measurement error. Neither car will win many stoplight races against a modern EV or a hot hatch above $35,000.
| Specification | 2020 Si Coupe | 2025 Si Sedan |
|---|---|---|
| Engine | 1.5L turbo L15CA | 1.5L turbo L15CA |
| Horsepower | 205 hp @ 5,700 rpm | 200 hp @ 6,000 rpm |
| Torque | 192 lb-ft @ 2,100 rpm | 192 lb-ft @ 1,800 rpm |
| Transmission | 6-speed manual | 6-speed manual |
| Drivetrain | Front-wheel drive | Front-wheel drive |
| Limited-Slip Diff | Helical LSD | Helical LSD |
| 0-60 mph (C&D) | 6.3-6.4 sec | 6.6 sec |
| Quarter-Mile | 14.9 sec @ 93 mph | 14.9 sec @ 95 mph |
| Curb Weight | ~2,877 lbs | ~2,918-2,952 lbs |
Sources: Car and Driver (2020 Civic Si tested, 2025 Civic Si tested), Honda Newsroom (2020 Civic Si Coupe specifications, 2025 Civic Si Sedan specifications).
The Hybrid Wild Card — 2025 Sport Hybrid vs 2020 Si Coupe
The 2025 Civic Sport Hybrid makes this comparison more interesting than a simple Si-vs-Si matchup. The hybrid produces 200 horsepower and 232 lb-ft of torque — the same horsepower as the Si but 40 lb-ft more torque. It uses a 2.0-liter Atkinson-cycle engine with a two-motor eCVT (no belts, no pulleys, no conventional transmission). Car and Driver tested the hybrid at 6.2 seconds to 60 mph — 0.4 seconds quicker than the 2020 Si Coupe and 0.4 seconds quicker than the 2025 Si. The hybrid does this while returning EPA-rated 50/47/49 mpg, versus the Si’s 26/36/30.
The trade-off is engagement. The Si has a 6-speed manual transmission with a mechanical shift feel, a Helical LSD that pulls the car through corners, and adaptive dampers. The hybrid has an eCVT that never shifts and a less aggressive chassis calibration. The hybrid is objectively faster and dramatically more fuel-efficient, but it will never deliver the same driver involvement as the Si’s manual gearbox. Source: Car and Driver (2025 Civic Hybrid tested), Honda Newsroom EPA ratings.
| Metric | 2020 Si Coupe | 2025 Si Sedan | 2025 Sport Hybrid |
|---|---|---|---|
| Horsepower | 205 hp | 200 hp | 200 hp (combined) |
| Torque | 192 lb-ft | 192 lb-ft | 232 lb-ft (combined) |
| 0-60 (C&D) | 6.3 sec | 6.6 sec | 6.2 sec |
| Transmission | 6-speed manual | 6-speed manual | eCVT (2-motor) |
| EPA Combined | 30 mpg | 30 mpg | 49 mpg |
| Fuel Required | Premium recommended | Premium recommended | Regular 87 |
| Seats | 4 (2+2) | 5 | 5 |
| MSRP (2025) | ~$26,195 (2020) | $31,395 (+ dest.) | $30,100 (+ dest.) |
Sources: Car and Driver, Honda Newsroom, EPA fueleconomy.gov.
Driving Experience — The Real Difference
The 2020 Si Coupe and the 2025 Si Sedan share the same fundamental driving character: front-wheel drive, a mechanical LSD, a 6-speed manual with Honda’s characteristically short and precise throws, and 18-inch wheels with summer tires. The 2020 coupe is 2.5 inches lower than the sedan (54.9 in vs 55.5 in for the Si) and rides on the same 235/40R18 summer tires. The lower center of gravity and shorter wheelbase give the coupe slightly sharper turn-in response.
The 2025 Si sedan is more refined. The body structure is stiffer, the cabin is quieter, the interior materials are better, and the 9-inch touchscreen (with wireless Apple CarPlay and Android Auto) is a significant upgrade over the 2020’s 7-inch screen. The 2025 Si adds adaptive dampers (standard), which the 2020 Si did not have. The 2025 Si’s driver’s seat is more supportive for long drives.
The coupe, however, is an increasingly rare thing: a lightweight, manual-transmission front-drive coupe with a mechanical LSD. No Honda or Acura sells a manual-transmission coupe of any kind in 2025. The closest new alternative is a Mazda MX-5 Miata (RWD, convertible, 181 HP, $30,000) or a Toyota GR86 (RWD, 228 hp, $30,000) — neither of which offers the Civic Si’s back seat or trunk utility.
Price and Value Comparison
| Cost Factor | 2020 Si Coupe (new) | 2025 Si Sedan (new) | 2025 Hybrid Sedan (new) |
|---|---|---|---|
| MSRP + Destination | ~$26,790 | $31,395 + $1,150 | $30,100 + $1,150 |
| Adj. for Inflation (2025$) | ~$32,500 | $32,545 | $31,250 |
| Annual Fuel Cost | ~$1,850 (premium, 15k mi) | ~$1,640 (premium, 15k mi) | ~$899 (regular, 15k mi) |
| Used Price (2025) | $22,000-$27,000 | N/A (current model) | N/A (current model) |
Sources: Honda Newsroom pricing, EPA fueleconomy.gov annual fuel cost estimates (15,000 miles/year, current fuel prices). Used pricing based on Hagerty valuation and Bring a Trailer completed sales. Premium fuel priced at approximately $0.60-$0.80/gallon premium over regular.
Competitor Comparison — What Else Gets You Close in 2025
| Model (2025) | Engine / Power | 0-60 | Trans | Drive | MSRP |
|---|---|---|---|---|---|
| Civic Si Sedan | 1.5T / 200 hp | 6.6 sec | 6MT | FWD | $31,395 |
| Civic Sport Hybrid | 2.0H / 200 hp | 6.2 sec | eCVT | FWD | $30,100 |
| Mazda3 Turbo | 2.5T / 250 hp | 5.6 sec | 6AT | AWD | $33,500-$36,800 |
| Hyundai Elantra N | 2.0T / 276 hp | 5.0 sec | 6MT/8DCT | FWD | $34,850-$37,850 |
| VW Jetta GLI | 2.0T / 228 hp | 5.7 sec | 6MT/7DSG | FWD | $33,000-$35,000 |
Sources: Car and Driver, manufacturer MSRP press releases (2025 model year). Mazda3 Turbo pricing includes Premium Plus and Carbon Turbo trims. Elantra N pricing includes both 6MT and 8DCT variants. Jetta GLI pricing approximate due to limited official 2025 release data.
The 2020 Civic Si Coupe is slower in a straight line than every competitor in the table. Its strongest argument is not speed — it is engagement, weight (under 2,900 lbs with a manual transmission is genuinely rare in 2025), and the fact that the coupe body style has no direct replacement at any price. The Si sedan competes on value — it undercuts the Elantra N by $3,500-$6,500 and the Mazda3 Turbo by $2,000-$5,400, while offering a mechanical LSD that neither competitor matches at this price point.
Which Should You Buy in 2025?
Buy the 2020 Si Coupe (used) if: you want the last manual-transmission FWD sport coupe Honda will ever sell. The coupe is lighter, lower, and sharper than the sedan. It makes a legitimate enthusiast collector piece for someone who values the body style over practicality. Buy the cleanest, lowest-mile example you can find — preferably unmodified with the original summer tires still available as an option.
Buy the 2025 Si Sedan if: you want the enthusiast experience (manual, LSD, adaptive dampers) but need four doors and current infotainment. The 2025 Si is a more livable daily driver than the coupe ever was. The trade-off is 5 fewer horsepower, an extra 50-75 pounds, and no two-door option — but you get a much better cabin, a standard 9-inch touchscreen, and a car that will be easier to service for the next decade.
Buy the 2025 Sport Hybrid if: straight-line speed and fuel economy matter more than the manual transmission. The hybrid is quicker to 60 mph than either Si, costs less than the Si, costs $750 less per year in fuel, and returns 49 mpg combined. The trade-off is the eCVT — it never shifts, never bangs off a rev limiter, and never rewards you with a perfect heel-toe downshift. The hybrid is the rational choice; the Si is the emotional one.
Quick Reference — 2020 Coupe vs 2025 Sedan
☐ 2020 Si Coupe: 205 hp, 192 lb-ft — 6.4 sec 0-60 (C&D) — 6MT — FWD — EPA 26/36/30
☐ 2025 Si Sedan: 200 hp, 192 lb-ft — 6.6 sec 0-60 (C&D) — 6MT — FWD — EPA 26/36/30
☐ 2025 Hybrid Sedan: 200 hp comb., 232 lb-ft — 6.2 sec 0-60 — eCVT — FWD — EPA 50/47/49
☐ All three are front-wheel drive — the Civic Si has never been rear-wheel drive
☐ The coupe is 2.5 in lower and 4.7 in shorter than the Si sedan
☐ The coupe seats 4 (tight rear); the sedans seat 5
☐ The hybrid is the quickest non-Type R Civic — 6.2 sec 0-60
☐ The coupe was discontinued after 2020 — no direct replacement exists
☐ 2025 Si price: $31,395 + $1,150 destination (~$32,545)
☐ 2025 Hybrid price: $30,100 + $1,150 destination (~$31,250)
☐ $899/yr fuel for the hybrid vs ~$1,640/yr for the Si (premium, EPA figures)
☐ Elantra N is quicker and more track-focused but $3,500-$6,500 more expensive
☐ Mazda3 Turbo has AWD and a 6AT but no manual option — $33,500+
☐ Buy the coupe for collectibility; the Si sedan for engagement + utility; the hybrid for speed + efficiency