Chevrolet HHR

Generations: one catalogue generation, ten versions

Injection and layout that affect the buy: 2.0 AT and 2.0 MT use Direct injection (direct), compression 9.2, bore × stroke 86 × 86, engine Front, transverse. The 2.2 MT 143 hp and 2.2 AT 143 hp use Distributed injection (multi-point), compression 10, 86 × 94.6; engine position is not measured.

1 generation ran from 2005-09-01 to 2009-05-31. Body: Estate 5-door. Modifications in the data: 10. Every version shares that date window, so year-to-year “which generation” is not a fork here. The fork is engine, gearbox, and the duplicate-name power splits.

Specs table: engines, hp, gearbox, drive

Injection and layout that affect the buy: 2.0 AT and 2.0 MT use Direct injection (direct), compression 9.2, bore × stroke 86 × 86, engine Front, transverse. The 2.2 MT 143 hp and 2.2 AT 143 hp use Distributed injection (multi-point), compression 10, 86 × 94.6; engine position is not measured. The 2.2 AT 149 hp, 2.2 MT 149 hp, 2.4 AT 172 hp and 2.4 MT 172 hp are Front, transverse, Distributed injection (multi-point); compression and bore × stroke are not measured. The 2.4 MT 175 hp and 2.4 AT 175 hp use Distributed injection (multi-point), compression 10.5, 88 × 98; engine position is not measured.

Power per litre (hp ÷ displacement in litres): 2.0 MT 264 / 1.998 = 132 hp/l; 2.0 AT 253 / 1.998 = 127 hp/l; 2.4 175 hp = 175 / 2.384 = 73 hp/l; 2.4 172 hp = 72 hp/l; 2.2 149 hp = 149 / 2.189 = 68 hp/l; 2.2 143 hp = 65 hp/l. The Turbo 1998 cm³ versions more than double specific output versus the 143 hp 2189 cm³ pair.

Torque: 2.0 MT 353 Nm minus 2.2 MT 143 hp 210 Nm = +143 Nm. Peak torque on 2.0 AT arrives at 1650 rpm versus 4000 rpm on both 143 hp 2.2 versions — 2350 rpm earlier. The 149 hp 2.2 AT has 206 Nm and the 149 hp 2.2 MT has 203 Nm, both at 4800 rpm: 4–7 Nm less peak than the 143 hp pair, but peak is 800 rpm higher.

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

Measured 0–100 km/h, fastest to slowest among versions that have a figure:

• 2.0 MT: 6.6 s
• 2.4 MT 172 hp: 8.9 s (+2.3 s versus 2.0 MT)
• 2.4 MT 175 hp: 9.1 s
• 2.2 AT 149 hp and 2.4 AT 172 hp: both 9.8 s
• 2.4 AT 175 hp: 10.0 s
• 2.2 MT 149 hp: 10.2 s
• 2.2 MT 143 hp: 10.3 s
• 2.2 AT 143 hp: 10.5 s
• 2.0 AT: 0–100 not measured

The 2.4 MT 172 hp is 0.2 s quicker to 100 km/h than the 2.4 MT 175 hp (8.9 vs 9.1) despite 3 hp less. The 2.4 AT 172 hp matches the 2.2 AT 149 hp at 9.8 s; the extra 23 hp (172 − 149) does not buy a shorter measured sprint in Automatic form. Manual versus Automatic on the same 172 hp 2.4: 8.9 s versus 9.8 s — 0.9 s. On 175 hp 2.4: 9.1 s versus 10.0 s — 0.9 s. On 149 hp 2.2: Manual 10.2 s versus Automatic 9.8 s — here the Automatic is 0.4 s quicker. On 143 hp 2.2: Manual 10.3 s versus Automatic 10.5 s — Manual 0.2 s quicker.

Top speed: 2.4 AT 172 hp 194 km/h (highest measured); 2.2 AT 149 hp and 2.2 MT 149 hp 191 km/h; 2.4 MT 172 hp 189 km/h; 2.4 MT 175 hp and 2.4 AT 175 hp 180 km/h. The 175 hp pair is 14 km/h slower than the 172 hp Automatic (194 − 180). 2.0 AT, 2.0 MT, 2.2 MT 143 hp, 2.2 AT 143 hp: top speed not measured.

City / highway / mixed (l/100 km):

• Lowest mixed: 2.2 MT 143 hp 9.4 (city 10, highway 8.7)
• 2.2 AT 143 hp: 10.6 / 9 / 9.7
• 2.0 MT, 2.2 AT 149 hp, 2.2 MT 149 hp, 2.4 AT 172 hp, 2.4 MT 175 hp: mixed 9.8 (city/highway differ)
• 2.0 AT and 2.4 MT 172 hp: mixed 10.2
• Highest mixed: 2.4 AT 175 hp 10.7 (city 11.8, highway 9.4)

Highway 8.1 appears on 2.0 AT, 2.0 MT, 2.2 AT 149 hp and 2.2 MT 149 hp. The Turbo 2.0 AT is the thirstiest in the city at 12.4; that is 2.4 l/100 km more than 2.2 MT 143 hp (12.4 − 10.0). Mixed on 2.0 MT is 9.8 — the same as several naturally aspirated versions — so the 264 hp Manual does not carry a mixed penalty versus 2.2 AT 149 hp. CO2 and eco class: not measured on all ten.

Tank is 49 l on every version. Implied mixed range (49 ÷ mixed × 100): 2.2 MT 143 hp ≈ 521 km; 2.2 AT 143 hp ≈ 505 km; mixed-9.8 versions ≈ 500 km; mixed-10.2 versions ≈ 480 km; 2.4 AT 175 hp ≈ 458 km.

Fuel grade: Turbo 2.0 AT / 2.0 MT specify 95; all 2.2 and 2.4 versions specify 92.

Weight, clearance, tank, wheels

Kerb / gross / clearance:

Wheels: not measured on all ten. Tank: 49 l on all ten.

kg per hp (kerb ÷ hp), where kerb is measured: 2.0 MT 1488/264 = 5.6; 2.0 AT 1524/253 = 6.0; 2.4 MT 175 hp 1455/175 = 8.3; 2.4 172 hp 1455/172 = 8.5; 2.2 149 hp 1431/149 = 9.6; 2.2 MT 143 hp 1431/143 = 10.0. The 2.0 Turbo cars are 93 kg (2.0 AT 1524 − 1431) or 57 kg (2.0 MT 1488 − 1431) heavier than the 1431 kg 2.2 cars, but they carry more than 100 extra hp, so mass per horsepower still falls.

Gross is 32 kg higher on the Turbo pair (1925 − 1893). Highest measured payload is 462 kg on both 149 hp 2.2 versions; 2.0 MT 437 kg; 2.4 172 hp 438 kg; 2.0 AT 401 kg. Clearance is 159 or 160 mm — 1 mm, not a buying split.

Brakes: 2.0 AT and 2.0 MT — front Disc, rear Disc. All eight 2.2 and 2.4 versions — front Disc, rear Drum. Suspension is Independent, spring front and rear on every version.

Length and other exterior dimensions: not measured in this dataset (search queries for 2006–2011 Chevrolet HHR dimensions do not have numbers here).

Which version to choose

If the question is horsepower and 0–100. Buy 2.0 MT: 264 hp, 353 Nm, 6.6 s, 5.6 kg/hp, mixed 9.8, Disc/Disc, fuel 95. Versus 2.4 MT 172 hp you gain 92 hp (264 − 172), 127 Nm (353 − 226), and 2.3 s to 100 km/h, at +33 kg kerb (1488 − 1455) and mixed 9.8 versus 10.2 (the Turbo Manual is 0.4 l/100 km lower mixed). Versus 2.2 MT 143 hp you gain 121 hp and 3.7 s (10.3 − 6.6), mixed rises from 9.4 to 9.8.

If you want Turbo but Automatic. 2.0 AT is 253 hp and 302 Nm at 1650 rpm — 11 hp and 51 Nm below 2.0 MT, kerb 36 kg higher (1524 − 1488), city 12.4 versus 11.2. 0–100 and top speed are not measured, so you cannot rank it against the 6.6 s Manual with a sprint number. It is still 81 hp above 2.4 AT 172 hp (253 − 172) and the only Automatic with rear Disc.

If you want Automatic without Turbo, and a measured top speed. 2.4 AT 172 hp: 172 hp, 9.8 s, 194 km/h, mixed 9.8, kerb 1455 kg, 8.5 kg/hp. 2.2 AT 149 hp: same 9.8 s, 191 km/h (−3 km/h), mixed 9.8, kerb 1431 kg (−24 kg), 9.6 kg/hp. The 23 hp and 20 Nm (226 − 206) of the 172 hp 2.4 AT do not shorten 0–100 versus the 149 hp 2.2 AT; they buy +3 km/h and 24 kg. 2.2 AT 143 hp: 10.5 s, top speed not measured, mixed 9.7 (best Automatic mixed), kerb not measured. 2.4 AT 175 hp: 10.0 s, 180 km/h, mixed 10.7 — slowest Automatic sprint among 2.4s, lowest measured top speed, highest mixed. The 175 hp Automatic is not the 172 hp Automatic plus 3 hp of free performance: it is 0.2 s slower to 100, 14 km/h slower on top speed, and 0.9 l/100 km thirstier mixed (10.7 − 9.8).

If you want Manual without Turbo. 2.4 MT 172 hp: 8.9 s (fastest non-Turbo), 189 km/h, mixed 10.2, city 11.8. 2.4 MT 175 hp: 9.1 s, 180 km/h, mixed 9.8, city 10.6 — 0.2 s slower, 9 km/h slower, but 0.4 l/100 km better mixed and 1.2 l/100 km better in the city (11.8 − 10.6). 2.2 MT 149 hp: 10.2 s, 191 km/h (higher top speed than both 2.4 Manuals), mixed 9.8, kerb 1431 kg. 2.2 MT 143 hp: 10.3 s, top speed not measured, mixed 9.4, city 10.0 — the economy pick.

2.2 143 hp versus 2.2 149 hp. Automatic: 143 hp does 10.5 s, 149 hp does 9.8 s (−0.7 s); mixed 9.7 versus 9.8. Manual: 143 hp 10.3 s versus 149 hp 10.2 s (−0.1 s); mixed 9.4 versus 9.8. Peak torque is higher on 143 hp (210 Nm vs 206/203). Peak power rpm: 5600 versus 6100. The 149 hp pair is the one with measured 191 km/h, measured 1431 kg, measured 1893 kg gross, Front, transverse on the data card, and 159 mm clearance; the 143 hp pair has 160 mm clearance, engine position not measured, and gross not measured (Manual) or kerb and gross not measured (Automatic).

2.4 172 hp versus 2.4 175 hp. Do not treat 175 as strictly “more.” On Manual, 172 hp is quicker (8.9 vs 9.1) and has higher top speed (189 vs 180) but worse mixed (10.2 vs 9.8) and worse city (11.8 vs 10.6). On Automatic, 172 hp is quicker (9.8 vs 10.0), much faster at the top (194 vs 180), and uses less mixed fuel (9.8 vs 10.7). Compression 10.5 and 88 × 98 are measured only on the 175 hp pair; those fields are not measured on the 172 hp pair. Engine position is Front, transverse on 172 hp and not measured on 175 hp.

Reliability and problems (what this catalogue can and cannot say). The data do not record failure rates, “engine power reduced,” or swap lists. What is measured and can affect ownership: Turbo + Direct injection (direct) + fuel 95 on 2.0 AT / 2.0 MT versus No boost + Distributed injection (multi-point) + fuel 92 on the other eight; Disc/Disc only on the two 2.0 versions; Drum rear on all 2.2 and 2.4. Eco class and CO2 are not measured. Duplicate names (2.2 AT, 2.2 MT, 2.4 AT, 2.4 MT) must be checked by hp (143 vs 149, 172 vs 175) or you will buy the wrong card.

Short map. Fastest measured: 2.0 MT. Highest measured hp in Automatic: 2.0 AT (sprint not measured). Best measured mixed and city: 2.2 MT 143 hp. Highest measured top speed: 2.4 AT 172 hp. Lightest measured kerb with a full weight card and 462 kg payload: 2.2 AT / 2.2 MT 149 hp at 1431 kg. Highest mixed use: 2.4 AT 175 hp. There is no second generation in this catalogue, so those ten rows are the whole choice.