Kia Elan

Which version to buy: 136 hp vs 151 hp 1.8 MT

Both cars are Gasoline, 4 cylinders, Inline, 4 valves per cylinder, 1793 cc, Manual with 5 gears, FWD, kerb weight 1015 kg, fuel tank 46 L, and they ran in the same window: 1996-01-01 to 1999-12-31. Bore × stroke is 81 × 87 on both. Fuel system on both is Distributed injection (multi-point). Front brakes Disc, rear brakes Disc. Front suspension Independent, spring.

Both cars are Gasoline, 4 cylinders, Inline, 4 valves per cylinder, 1793 cc, Manual with 5 gears, FWD, kerb weight 1015 kg, fuel tank 46 L, and they ran in the same window: 1996-01-01 to 1999-12-31. Bore × stroke is 81 × 87 on both. Fuel system on both is Distributed injection (multi-point). Front brakes Disc, rear brakes Disc. Front suspension Independent, spring. Rear suspension is not measured on both. Wheel sizes are not measured on both.

What you actually buy extra on the 151 hp car is 15 hp (111 kW vs 100 kW), 31 Nm (186 Nm vs 155 Nm), 0.4 s quicker 0–100 (8.7 s vs 9.1 s), and 8 km/h more top speed (205 km/h vs 197 km/h). That is +11% power and +20% torque for the same displacement and the same kerb weight.

Power per litre: 136 / 1.793 ≈ 75.9 hp/L on the 1.8 MT 136 hp; 151 / 1.793 ≈ 84.2 hp/L on the 1.8 MT 151 hp. Weight per horsepower: 1015 / 136 ≈ 7.46 kg/hp vs 1015 / 151 ≈ 6.72 kg/hp. The turbo car carries 0.74 kg less per horsepower.

The naturally aspirated 1.8 MT 136 hp makes peak torque at 2500 rpm (155 Nm). The turbo 1.8 MT 151 hp makes 186 Nm at 4500 rpm. Peak power arrives at 6500 rpm on the 136 hp car and 6000 rpm on the 151 hp car. If you want torque earlier in the rev range, the 136 hp 1.8 MT is the one with the lower torque peak. If you want the higher absolute figures, the 151 hp 1.8 MT is the one.

Boost is the split that matters: No vs Turbo. Compression ratio is 9.5 on the 136 hp car and not measured on the 151 hp car. Engine position is Front, transverse on the 136 hp car and not measured on the 151 hp car. Fuel grade is not measured on the 136 hp car and 95 on the 151 hp car.

Generations: what changed (and what did not)

There is 1 generation. There is no second generation to “step up” to, and no restyling listed as a separate generation. Production of generation 1 generation is 1996-01-01 to 1999-12-31. Body type is Cabrio. Version count: 2, both named 1.8 MT.

Nothing in the data shows a later Elan generation with a different gearbox, drive, or body. You are not choosing between years of a family tree. You are choosing between two 1.8 MT cars inside the same Cabrio generation.

Engines and specs

Valves per cylinder: 4 on both. Injection: Distributed injection (multi-point) on both.

Performance and economy (mpg / consumption)

1.8 MT 136 hp: 0–100 9.1 s, top speed 197 km/h. City, highway, and combined consumption are not measured. CO2 is not measured. Eco class is not measured.

1.8 MT 151 hp: 0–100 8.7 s, top speed 205 km/h. City 11.6, highway 7.4, combined 9.7 (same units as in the source data, L/100 km class figures). CO2 is not measured. Eco class is not measured.

The turbo car is the only one with measured consumption. You cannot claim the 136 hp car uses less or more fuel: those three figures are not measured. On the 151 hp car, highway 7.4 versus city 11.6 is a 4.2 gap; combined 9.7 sits 2.3 above highway and 1.9 below city.

Acceleration gap 0.4 s and top-speed gap 8 km/h are small next to the 15 hp / 31 Nm gap. If straight-line numbers are the reason to buy, the 151 hp 1.8 MT is the faster of the two. If you only care that both are sub-10 s to 100, both qualify: 9.1 s and 8.7 s.

Dimensions and weight

Kerb weight is 1015 kg on both 1.8 MT versions. Gross weight is not measured on the 136 hp car and 1465 kg on the 151 hp car. Where measured, payload arithmetic is 1465 − 1015 = 450 kg on the turbo car only; do not treat 450 kg as a figure for the 136 hp car.

Ground clearance is not measured on the 136 hp 1.8 MT and 130 mm on the 151 hp 1.8 MT. Tank 46 L on both. Wheel sizes not measured on both.

If you need a published ground clearance or a published gross weight, only the 151 hp 1.8 MT has those numbers in this dataset. If you only need kerb weight and tank size, they are identical.

Reliability and problems: what the numbers do and do not say

There are no failure-rate, recall, or service-interval figures in the source data. Reliability and “common problems” cannot be ranked from these fields. What you can rank is mechanical difference: Turbo vs No, torque peak 4500 vs 2500 rpm, power peak 6000 vs 6500 rpm, and fuel 95 measured only on the turbo car.

The shared layout (4, Inline, FWD, Manual 5, 1793 cc, same kerb weight) means you are not choosing a different drivetrain family. You are choosing boost and the measured extras that come with the 151 hp row.

Which version to choose

Choose the 1.8 MT 151 hp (Turbo) if you want the higher output, the only measured consumption set (11.6 / 7.4 / 9.7), the only measured fuel grade (95), the only measured ground clearance (130), and the only measured gross weight (1465). You get 15 hp, 31 Nm, 0.4 s, and 8 km/h over the other 1.8 MT, at the same 1015 kg and the same 46 L tank. Specific output is about 84.2 hp/L vs 75.9 hp/L.

Choose the 1.8 MT 136 hp (boost No) if you want the lower torque peak (155 Nm at 2500 rpm rather than 186 Nm at 4500), a published compression ratio (9.5), and a published engine position (Front, transverse). You give up the measured mpg-style figures, clearance, gross weight, and fuel grade — those are not measured on this version. You also give up 15 hp and 31 Nm.

There is no automatic, no other displacement, and no other generation in the data. The catalogue names stay 1.8 MT and 1.8 MT; separate them by 136 hp and 151 hp. Extra “money” is not in the dataset; the extra hardware the numbers show is turbocharging and the higher power, torque, speed, and (where measured) economy and weight figures on the 151 hp car.