JAC J2 (Yueyue)

JAC J2 (Yueyue): Which Version Should You Choose?

The JAC J2 (Yueyue) was offered in three configurations during its single generation: two versions named 1.0 MT, distinguished by outputs of 50 hp and 68 hp, and a 1.1 AT producing 50 hp. All are Gasoline, FWD, five-door Mini models with a 35-litre fuel tank and a kerb weight of 915 kg.

The JAC J2 (Yueyue) was offered in three configurations during its single generation: two versions named 1.0 MT, distinguished by outputs of 50 hp and 68 hp, and a 1.1 AT producing 50 hp. All are Gasoline, FWD, five-door Mini models with a 35-litre fuel tank and a kerb weight of 915 kg. The strongest choice on paper is the 1.0 MT with 68 hp: it has the best power-to-weight ratio and the greatest ground clearance. The 1.1 AT with 50 hp is the only Automatic option, while the 1.0 MT with 50 hp combines the joint-highest stated top speed with a Manual gearbox.

Generation and version choice

The JAC J2 (Yueyue) has 1 generation, produced from July 2014 through December 2015. This generation uses the Mini 5-doors body and contains 3 versions. There is no separate generation or restyling to compare in the supplied data, so the buying decision is entirely between the three engine and transmission configurations.

The two versions called 1.0 MT should not be confused. One has 50 hp (37 kW) from an inline 4-cylinder engine, while the other has 68 hp (50 kW) from an inline 3-cylinder engine. The third configuration, 1.1 AT, has 50 hp (37 kW) and an inline 4-cylinder engine.

JAC J2 engine and transmission specs

Both 1.0 MT versions have the same 999 cc displacement and 90 Nm torque, but the 68 hp version adds 18 hp, an increase of 36% over the 50 hp version. It also reaches peak torque at 3500 rpm, which is 1000 rpm earlier than the 50 hp 1.0 MT.

Calculated from the supplied displacement and output, the 1.0 MT with 68 hp produces about 68.1 hp per litre. The 1.0 MT with 50 hp produces about 50.1 hp per litre, and the 1.1 AT produces about 46.5 hp per litre. These figures make the 68 hp 1.0 MT the highest-output engine relative to its capacity.

The 1.1 AT adds 76 cc over either 1.0 MT, yet its output remains 50 hp. Its 87 Nm torque is 3 Nm lower than the torque of both Manual versions. Its defining advantage is therefore its Automatic gearbox, not higher engine output.

All three engines use Distributed injection (multi-point) and have No boost. Engine position is listed as Front, transverse for the 1.0 MT with 68 hp; it is not measured for the 1.0 MT with 50 hp and 1.1 AT. The two 1.0-litre engines have 4 valves per cylinder, while the valves-per-cylinder figure for the 1.1 AT is not measured. All three versions meet Euro 4.

Performance, top speed, and fuel economy

The 1.0 MT with 50 hp and the 1.1 AT share the highest stated maximum speed of 150 km/h. That is 10 km/h more than the 140 km/h stated for the 1.0 MT with 68 hp. The more powerful engine therefore does not have the highest listed top speed.

Acceleration from 0–100 km/h is not measured for every version. City, highway, and combined fuel-consumption figures are also not measured for all three. Consequently, the supplied data cannot establish which version accelerates fastest or delivers the best mpg. CO₂ output is not measured across the range as well.

Dimensions, weight, and ground clearance

Every JAC J2 (Yueyue) version has the same 915 kg kerb weight. The 1.0 MT with 68 hp therefore carries about 13.5 kg per horsepower, compared with 18.3 kg per horsepower for both 50 hp versions. Put another way, the stronger 1.0-litre model provides approximately 35.7% more horsepower per tonne than either alternative.

Ground clearance is another clear distinction. The 68 hp 1.0 MT provides 150 mm, which is 15 mm more than the 135 mm listed for the 50 hp 1.0 MT and 1.1 AT. Gross weight is measured only for the 68 hp 1.0 MT, at 1290 kg; it is not measured for the other versions. Wheel sizes are not measured for all three.

The chassis specification does not separate the choices: every version has Independent, spring front suspension, Semi-independent, springorts hélicoïdaux, sem rear suspension, Disc front brakes, and Drum rear brakes.

Which JAC J2 version should you buy?

Choose the 1.0 MT with 68 hp if engine output, power-to-weight ratio, earlier peak torque, or ground clearance matters most. It supplies 18 hp more than either alternative without increasing the 915 kg kerb weight, while its 90 Nm arrives at 3500 rpm. Its trade-off in the recorded specifications is a 140 km/h top speed, versus 150 km/h for the other two versions.

Choose the 1.1 AT if an Automatic gearbox is the deciding requirement. It is the only Automatic version and retains a five-speed transmission, FWD, a 35-litre tank, and a 150 km/h stated top speed. However, its larger 1075 cc engine produces the same 50 hp as the less powerful 999 cc 1.0 MT, and its 87 Nm torque is 3 Nm lower.

Choose the 1.0 MT with 50 hp if you want the Manual configuration with the joint-highest stated top speed. It matches the 1.1 AT at 50 hp and 150 km/h, while producing 90 Nm rather than 87 Nm. Against the 68 hp 1.0 MT, however, it gives away 18 hp, reaches peak torque 1000 rpm later, and has 15 mm less ground clearance.

No fuel-consumption or acceleration measurements are available, and the data contains no prices. It is therefore impossible to quantify fuel-cost savings, acceleration differences, or what any price premium buys. Based strictly on the measured specifications, the 1.0 MT with 68 hp is the strongest all-round choice, the 1.1 AT is the transmission-led choice, and the 1.0 MT with 50 hp is the option for buyers prioritizing a Manual gearbox and the 150 km/h listed top speed.