Every engine, transmission, drivetrain and fuel economy combination the EPA certified for the 2004 Insight. 2 configurations listed, with city, highway and combined mpg, annual fuel cost and tailpipe CO₂ for each one.
| Engine | Transmission | Drive | City | Hwy | Comb. | L/100km | Fuel cost/yr | CO₂ g/mi | Fuel |
|---|---|---|---|---|---|---|---|---|---|
| 1L I3 Hybrid · Start-stop | Automatic (variable gear ratios) EMS | FWD | 45 | 49 | 47 | 5.0 | $1,450 | 189 | Regular Gasoline |
| 1L I3 Hybrid · Start-stop | 5-speed manual SIL EMS | FWD | 48 | 58 | 52 | 4.5 | $1,300 | 171 | Regular Gasoline |
mpg figures are the EPA window-sticker values in US gallons. The L/100km column is the same figure converted for metric readers. CO₂ is tailpipe only and excludes fuel production.
| Engine 1 | 1L I3 Hybrid (Regular Gasoline) |
|---|
| Engine technology | EMS, SIL EMS, VTEC, VTEC-E |
|---|---|
| Start-stop | Engine idle-stop system fitted on at least one configuration |
| Electrification | Hybrid |
| Drivetrain | FWD |
|---|---|
| Vehicle class | Two Seaters |
| Fuel types | Regular Gasoline |
| Best combined | 52 mpg (4.5 L/100km) |
|---|---|
| Worst combined | 47 mpg (5.0 L/100km) |
| Spread | 47–52 mpg combined across configurations |
| Annual fuel cost (best) | $1,300 |
| Tailpipe CO₂ (best config) | 171 g/mile |
|---|---|
| Tailpipe CO₂ range | 171 – 189 g/mile across all configurations |
| 5-year fuel cost vs average new vehicle | $5,500 less |
Dimensions, curb weight, interior volume, oil capacity and torque specifications require official Honda documentation that we have not yet verified for this model year. They will be added once sourced.