Proton Arena

[2] Common vehicle modifications include the use of a rigid rear axle, an uprated front stabiliser bar, 14" front ventilated discs and 9" rear diffs with load sensing proportioning valves (AWD conversion), large bull bars, suspension lift kits and the use of reinforced high-profile tyres.

[2] The Arena was proclaimed to have met Europe's Euro 2 emission standards, and was also claimed to provide a good power-and-fuel efficiency balance by producing an output of 60.6 hp (45 kW) per litre and a power-to-weight ratio of 85.2 hp (64 kW) per tonne.

This facilitates a seamless bodyline and transition of loads through the vehicle structure, and links the torque box into the cab as a single unit.

While freely sold in Malaysia, no stringent third-party safety tests on the Arena were conducted or published publicly in the country.

[4][5][6][7][8] The Jumbuck lacks many of the safety features offered in other modern automobiles, such as airbags and anti-lock brakes.

The absence of such safety features in an attempt to lower retail pricing is suspected to be one factor for the one-star crash test result.

[9] These rims although shared with size in the Wira, and more common small cars like the Mitusbishi Lancer, they are not generally designed to be loaded with heavy weights, with a load rating of only 560 kg per tyre, and a Gross Vehicle Mass of 1,500 kg, the vehicle is running close to its designed limits on axle group loadings, especially when cornering and roll forces are applied to the vehicle.

Proton Jumbuck rear
Proton Jumbuck GLi (Australia)