Chevrolet SS: Which Version Should You Buy?

The Chevrolet SS catalogue data presents three version-and-period combinations within a single generation: the original 6.2 AT from 2013–2015, the restyled 6.2 AT from 2015–2017, and the restyled 6.2 MT from 2015–2017. Every version is a Sedan with a 6,162 cc Gasoline engine, 415 hp, 563 Nm, and RWD.

The Chevrolet SS catalogue data presents three version-and-period combinations within a single generation: the original 6.2 AT from 2013–2015, the restyled 6.2 AT from 2015–2017, and the restyled 6.2 MT from 2015–2017. Every version is a Sedan with a 6,162 cc Gasoline engine, 415 hp, 563 Nm, and RWD. The key buying decision is therefore not engine output but transmission, performance, kerb weight, fuel consumption, and whether you prefer the original or restyled specification. For the quickest and lightest choice, the restyled 6.2 MT is the clear numerical winner; for an Automatic, the restyled 6.2 AT adds a higher top speed and measured fuel-economy data compared with the original 6.2 AT.

Chevrolet SS generations and versions

The Chevrolet SS has one generation represented across two catalogue phases, although the data contains two generation records. The original 1 generation covers 2013–2015 and is a Sedan with one version, 6.2 AT. The 1 generation, restyling record covers 2015–2017 and remains a Sedan, but expands the range to two versions: 6.2 AT and 6.2 MT.

The overlap in 2015 means the version name alone is insufficient when comparing an Automatic car. The 2013–2015 6.2 AT and the 2015–2017 restyled 6.2 AT share the same name, power, torque, engine displacement, transmission type, and kerb weight. They are distinguished below by their production periods.

Chevrolet SS engine specs and horsepower

All three combinations use a front, longitudinal 6,162 cc Gasoline engine with 8 cylinders in a V-shaped layout. Each is naturally aspirated, with boost listed as No, and uses Distributed injection (multi-point). Output is identical at 415 hp at 5,900 rpm and 563 Nm at 4,600 rpm. With the same displacement and output, each produces approximately 67.3 hp per litre and 91.4 Nm per litre.

Production phase and exact versionPowerTorqueDisplacementFuelCylindersLayoutBoostGearboxDrive
2013–2015 6.2 AT415 hp563 Nm6,162 ccGasoline8V-shapedNo6-speed AutomaticRWD
2015–2017 restyled 6.2 AT415 hp563 Nm6,162 ccGasoline8V-shapedNo6-speed AutomaticRWD
2015–2017 restyled 6.2 MT415 hp563 Nm6,162 ccGasoline8V-shapedNo6-speed ManualRWD

The original 6.2 AT is listed with 4 valves per cylinder, while both restyled versions are listed with 2 valves per cylinder. Compression ratio and bore-and-stroke data do not separate the cars: all have a 10.7 compression ratio and a 103.25 × 92 bore and stroke.

Chevrolet SS performance, acceleration, and top speed

The restyled 6.2 MT has the strongest recorded performance. It reaches 100 km/h in 4.6 seconds and has a top speed of 289 km/h. Both 6.2 AT entries take 5.2 seconds to reach 100 km/h, making the Manual 0.6 seconds quicker.

Top speed distinguishes the two Automatic periods. The original 2013–2015 6.2 AT reaches 257 km/h, while the restyled 2015–2017 6.2 AT reaches 283 km/h, a difference of 26 km/h despite identical engine output and kerb weight. The restyled 6.2 MT reaches 289 km/h, which is 6 km/h faster than the restyled Automatic and 32 km/h faster than the original Automatic.

Production phase and exact version0–100 km/hTop speed
2013–2015 6.2 AT5.2 seconds257 km/h
2015–2017 restyled 6.2 AT5.2 seconds283 km/h
2015–2017 restyled 6.2 MT4.6 seconds289 km/h

Because the supplied data reports 0–100 km/h rather than 0–60 mph, Chevrolet SS 0–60 performance is not measured here.

Chevrolet SS mpg and fuel economy

Fuel consumption for the original 2013–2015 6.2 AT is not measured in the catalogue data: city consumption is not measured, highway consumption is not measured, and combined consumption is not measured.

For the restyled cars, combined consumption is identical at 13.8 L/100 km, and highway consumption is identical at 11.2 L/100 km. The difference appears in city use: the 6.2 AT records 16.8 L/100 km, while the 6.2 MT records 15.7 L/100 km. The Manual therefore uses 1.1 L/100 km less in the city according to the supplied figures.

Production phase and exact versionCityHighwayCombined
2013–2015 6.2 ATnot measurednot measurednot measured
2015–2017 restyled 6.2 AT16.8 L/100 km11.2 L/100 km13.8 L/100 km
2015–2017 restyled 6.2 MT15.7 L/100 km11.2 L/100 km13.8 L/100 km

All versions have a 71-litre fuel tank. CO₂ emissions and environmental class are not measured for any version.

Chevrolet SS dimensions, weight, and wheels

Full exterior dimensions and wheelbase are not measured in the supplied data. Gross weight is also not measured for any version.

The two 6.2 AT entries have a kerb weight of 1,803 kg. The restyled 6.2 MT weighs 1,796 kg, making it 7 kg lighter. Relative to power, each Automatic carries approximately 4.34 kg per horsepower, while the Manual carries approximately 4.33 kg per horsepower. The difference is small, so the Manual’s substantially quicker acceleration cannot be explained by kerb weight alone from the available figures.

Ground clearance is not measured for the original 2013–2015 6.2 AT. Both restyled versions have 155 mm of ground clearance. Every version uses 245/40 R19 wheels at one end and 275/35 R19 at the other.

Production phase and exact versionKerb weightGross weightGround clearanceTankWheel sizes
2013–2015 6.2 AT1,803 kgnot measurednot measured71 litres245/40 R19; 275/35 R19
2015–2017 restyled 6.2 AT1,803 kgnot measured155 mm71 litres245/40 R19; 275/35 R19
2015–2017 restyled 6.2 MT1,796 kgnot measured155 mm71 litres245/40 R19; 275/35 R19

All three use Independent, spring suspension at the front and rear, plus Ventilated disc front brakes. The original 6.2 AT has ventilated rear disc brakes in the data, whereas the restyled 6.2 AT and 6.2 MT have rear disc brakes.

Which Chevrolet SS version should you buy?

Choose the restyled 6.2 MT if performance is the priority. It offers the same 415 hp and 563 Nm as both Automatic alternatives, yet its 4.6-second 0–100 km/h time is 0.6 seconds quicker. It is also the fastest at 289 km/h, the lightest at 1,796 kg, and records the lowest city consumption at 15.7 L/100 km. Its combined and highway consumption remain equal to the restyled Automatic at 13.8 and 11.2 L/100 km.

Choose the restyled 6.2 AT if you want an Automatic while retaining the stronger measured top-speed figure of the later specification. It matches the original 6.2 AT’s 5.2-second acceleration, 415 hp, 563 Nm, and 1,803 kg kerb weight, but raises top speed from 257 to 283 km/h. It also supplies measured city, highway, and combined consumption figures, plus a measured 155 mm ground clearance.

The original 2013–2015 6.2 AT is the choice only if its earlier production phase or its listed ventilated rear disc brakes matter more to you than the later car’s 26 km/h higher top speed. Its fuel consumption and ground clearance are not measured, so it cannot be ranked honestly against the restyled cars on those criteria.

No price or MSRP figures are provided, so the extra money required for one version—and whether that premium is worthwhile—cannot be measured. On specifications alone, the restyled 6.2 MT is the most compelling all-round version; the restyled 6.2 AT is the strongest Automatic choice.