Honda Inspire

Specs comparison: engines, horsepower, and what the extra displacement buys

Power per litre (hp ÷ displacement in litres) is the clean way to see whether a larger engine is just larger or actually denser. 4 generation 3.0 AT leads at 83.4 hp/L (250 hp from 2997 cc). 1 generation, restyling 2.0 AT and 2.0 MT sit at 82.7 hp/L. 5 generation 3.5 AT is 80.7 hp/L — more total power, slightly less density. 3 generation, restyling 3.2 AT is 81.0 hp/L.

Power per litre (hp ÷ displacement in litres) is the clean way to see whether a larger engine is just larger or actually denser. 4 generation 3.0 AT leads at 83.4 hp/L (250 hp from 2997 cc). 1 generation, restyling 2.0 AT and 2.0 MT sit at 82.7 hp/L. 5 generation 3.5 AT is 80.7 hp/L — more total power, slightly less density. 3 generation, restyling 3.2 AT is 81.0 hp/L. The same-name 3 generation 3.2 AT at 225 hp is only 70.1 hp/L. 2 generation 3.2 AT at 210 hp is 66.1 hp/L, the lowest density in the file. 2 generation 2.0 AT matches 3 generation 2.5 AT at 80.2 hp/L despite 455 cc less.

The jump from 3 generation 3.2 AT (225 hp) to 3 generation, restyling 3.2 AT (260 hp) is +35 hp on the same 3210 cc, +20 Nm (294 to 314), peak torque 1000 rpm earlier (4500 to 3500), and compression 9.8 to 10.5. That is the largest same-badge power step in the catalogue. The jump from 4 generation 3.0 AT (250 hp, 2997 cc) to 5 generation 3.5 AT (280 hp, 3471 cc) is +30 hp and +474 cc: you buy 0.47 L and 30 hp, not a denser engine.

Inside 2 generation, two 2.5 AT badges share 2451 cc. The 180 hp car uses fuel 92, compression 9.3, 225 Nm. The 190 hp car uses fuel 95, compression 10, 237 Nm. The extra 10 hp and 12 Nm are the whole difference; kerb weight is 1400 kg on both. Inside 1 generation, two 2.0 AT badges and two 2.0 MT badges split 160 hp and 165 hp. Torque stays 186 Nm at 4000 rpm; the 5 hp is the measured difference. Compression is not measured on the 160 hp pair and 9.7 on the 165 hp pair.

Engine position is Front, transverse where measured. It is not measured on 5 generation 3.5 AT, 2 generation 3.2 AT, 1 generation, restyling 2.0 MT and 2.5 MT, and several 1 generation rows. Bore × stroke is 89 × 93 on both 3.5 AT cars, 86 × 86 on both 3.0 AT cars, 89 × 86 on both 3 generation 3.2 AT cars, 86 × 71.6 on both 3 generation 2.5 AT cars, 93 × 78 on 2 generation 3.2 AT, 85 × 86.4 on the 2451 cc Inline 5 cars, and 82 × 75.6 on the 1996 cc Inline 5 cars.

Performance and mpg: 0–100, top speed, fuel

Measured 0–100 km/h exists on six rows only. 5 generation 3.5 AT and 5 generation, restyling 3.5 AT: 6.8 s. 3 generation, restyling 3.2 AT: 7.2 s (0.4 s slower, 20 hp less, 50 kg lighter than the 1600 kg 3.5 AT). 3 generation 3.2 AT: 8.2 s — 1.0 s slower than its restyled namesake at the same 3210 cc. Both 2.5 AT cars in 3 generation and 3 generation, restyling: 8.8 s. Every 4 generation, 2 generation, 1 generation, and 1 generation, restyling 0–100 figure is not measured.

Top speed is measured only on 3 generation and 3 generation, restyling. 3 generation, restyling 3.2 AT: 244 km/h. 3 generation 3.2 AT: 229 km/h (+15 km/h after restyling). 3 generation, restyling 2.5 AT: 230 km/h. 3 generation 2.5 AT: 222 km/h (+8 km/h). 5 generation top speed is not measured, so 6.8 s does not prove a higher peak speed than 244 km/h.

City, highway, mixed consumption, mpg, CO2, and eco class are not measured on every Honda Inspire version in these data. Fuel grade is the only consumption-adjacent fact: fuel 92 on 4 generation 3.0 AT, 2 generation 2.0 AT, 2 generation 2.5 AT (180 hp), and 1 generation, restyling 2.0 AT; fuel 98 only on 2 generation 3.2 AT; fuel 95 on the rest. A 4 generation 3.0 AT (250 hp, 92) versus 4 generation, restyling 3.0 AT (250 hp, 95) is the same power and 296 Nm; the restyling does not buy horsepower, it changes the labelled fuel from 92 to 95.

Dimensions, weight, and ground clearance

Kerb weight rises 320 kg from the lightest measured car to the heaviest: 1 generation 2.0 MT (160 hp) 1280 kg versus both 3.5 AT cars at 1600 kg. Weight per horsepower (kg/hp) is the useful ranking:

• 5 generation / 5 generation, restyling 3.5 AT: 1600 ÷ 280 = 5.71 kg/hp (best).
• 3 generation, restyling 3.2 AT: 1550 ÷ 260 = 5.96.
• 4 generation, restyling 3.0 AT: 1540 ÷ 250 = 6.16.
• 4 generation 3.0 AT: 1560 ÷ 250 = 6.24.
• 3 generation 3.2 AT: 1530 ÷ 225 = 6.80.
• 2 generation 3.2 AT: 1490 ÷ 210 = 7.10.
• 2 generation 2.5 AT (190 hp): 1400 ÷ 190 = 7.37.
• 3 generation 2.5 AT: 1500 ÷ 200 = 7.50; restyling 2.5 AT: 1510 ÷ 200 = 7.55.
• 1 generation, restyling 2.5 MT: 1440 ÷ 190 = 7.58.
• 2 generation 2.5 AT (180 hp): 1400 ÷ 180 = 7.78.
• 1 generation 2.0 MT (160 hp): 1280 ÷ 160 = 8.00.
• 1 generation 2.0 AT (160 hp): 1300 ÷ 160 = 8.13.
• 1 generation, restyling 2.0 AT: 1370 ÷ 165 = 8.30.
• 1 generation, restyling 2.0 MT and 1 generation 2.0 MT (165 hp): 1440 ÷ 165 = 8.73 (heaviest per hp among measured cars).

Kerb weight is not measured on 1 generation 2.0 AT (165 hp) and 1 generation 2.5 AT. Gross weight is not measured on every version. Wheel size is not measured on every version.

Ground clearance: 145 mm on both 5 generation cars (lowest); 155 mm on 4 generation, 4 generation, restyling, both 3 generation rows, and 1 generation 2.0 MT / 2.0 AT at 160 hp; 160 mm on 2 generation, 1 generation, restyling, and the remaining 1 generation rows. Buying a 5 generation 3.5 AT trades 10 mm versus 4 generation (155 − 145) and 15 mm versus 2 generation (160 − 145).

Tank: 70 L only on 5 generation, restyling 3.5 AT; 65 L on every other version, including 5 generation 3.5 AT. The restyling buys 5 L of tank, not power. Front brakes on 5 generation 3.5 AT are Disc; on 5 generation, restyling 3.5 AT they are Ventilated disc. Rear brakes are Disc on every version. Front and rear suspension, where measured, are Independent, spring; rear suspension is not measured on several 1 generation rows.

Which Honda Inspire version to choose

Want the lowest measured 0–100 and the lowest kg/hp. 5 generation 3.5 AT or 5 generation, restyling 3.5 AT. Same 280 hp, 206 kW, 3471 cc, 6.8 s, 1600 kg, 145 mm, Automatic 5, FWD. Differences that are measured: torque 343 Nm versus 342 Nm; tank 65 L versus 70 L; compression 10.5 versus not measured; engine position not measured versus Front, transverse; front brakes Disc versus Ventilated disc. If the extra 5 L tank and Ventilated disc front brakes matter, take the restyling (2010-08-01 to 2012-09-30). If 1 Nm and a measured 10.5 compression matter, take 5 generation (2007-12-01 to 2010-07-31). Searches for 2008 Honda Inspire specs and 2012 Honda Inspire specs map to these two rows.

Want the highest measured top speed. 3 generation, restyling 3.2 AT (2001-04-01 to 2003-05-31): 260 hp, 314 Nm at 3500 rpm, 7.2 s, 244 km/h, 1550 kg, 65 L, 155 mm. Versus 5 generation 3.5 AT it is 20 hp down, 0.4 s slower to 100, 50 kg lighter, 10 mm higher, and it is the only car here with a measured 244 km/h.

Want V-shaped 6 power without the 3471 cc car. 4 generation, restyling 3.0 AT (2005-11-01 to 2007-11-30): 250 hp, 83.4 hp/L, 1540 kg, 6.16 kg/hp, fuel 95, Ventilated disc front, 155 mm, 65 L. 4 generation 3.0 AT (2003-06-01 to 2005-10-31) is the same 250 hp and 296 Nm at 20 kg more (1560 kg) and fuel 92. 0–100 and top speed are not measured on either 3.0 AT. A 2003 / 2004 / 2005 / 2006 Honda Inspire search lands here.

Want a two-engine generation with a real internal gap. 3 generation and 3 generation, restyling. On the restyling, 3.2 AT versus 2.5 AT is +60 hp, +74 Nm, −1.6 s (7.2 vs 8.8), +14 km/h (244 vs 230), +40 kg (1550 vs 1510). On the pre-restyle 3 generation, 3.2 AT versus 2.5 AT is +25 hp, +54 Nm, −0.6 s (8.2 vs 8.8), +7 km/h (229 vs 222), +30 kg (1530 vs 1500), and both use Automatic 4 rather than Automatic 5. The restyling’s extra gear is the transmission change; power on 2.5 AT does not change (200 hp both sides).

Want Inline 5 and the lightest cars. 2 generation (1995-02-01 to 1998-09-30) and the first generation rows. 2 generation 2.0 AT: 160 hp, 1380 kg, fuel 92. The two 2.5 AT cars at 1400 kg split 180 hp (fuel 92) and 190 hp (fuel 95). 2 generation 3.2 AT is the odd one: V-shaped 6, 210 hp, 1490 kg, fuel 98 — the only 98 in the file — 0–100 not measured. 1 generation, restyling (1992-01-01 to 1995-01-31) is the last place with Manual: 2.0 MT 165 hp at 1440 kg versus 2.0 AT 165 hp at 1370 kg — the Automatic is 70 kg lighter at the same 165 hp and 186 Nm. 2.5 AT and 2.5 MT share 190 hp and 1440 kg; the Manual does not buy a weight cut.

Want the absolute lightest kerb weight. 1 generation 2.0 MT (160 hp): 1280 kg, 160 hp, Manual 5, 155 mm, 65 L. 1 generation 2.0 AT (160 hp) is 20 kg heavier at 1300 kg for Automatic 4. The 165 hp 2.0 AT in 1 generation has kerb weight not measured; do not treat it as 1280 kg. 1992 Honda Inspire specs overlap 1 generation (to 1992-12-31) and 1 generation, restyling (from 1992-01-01); the 165 hp restyle 2.0 AT is 1370 kg, 90 kg above the 160 hp 2.0 MT.

Reliability and problems. These data do not measure failure rates, oil capacity, or engine-bay layout. What they do measure for a used-car filter: every engine is Gasoline without boost; gearboxes are Automatic 4, Automatic 5, or Manual 5; drive is always FWD. A 5 generation 3.5 AT is 280 hp through the front wheels at 1600 kg. A 1 generation 2.0 MT (160 hp) is 160 hp at 1280 kg. Those are different loads on the same FWD layout; the file does not rank which lasts longer.

There is no Honda Inspire versus Accord, Civic, Saber, Acura TL, or Legend comparison in these numbers. There are no prices. The arithmetic choice is: 3.5 AT for 6.8 s and 5.71 kg/hp; 3 generation, restyling 3.2 AT for 244 km/h; 4 generation, restyling 3.0 AT for 83.4 hp/L at 1540 kg; 2.5 AT (190 hp) in 2 generation if 1400 kg and fuel 95 beat 180 hp and fuel 92; 2.0 MT (160 hp) in 1 generation if 1280 kg and a Manual 5 are the point.