Part of the data ring
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Logbook · Subcompact Cars · 1988–2001

Pontiac Firebird/Trans Am

What it costs to keep fuelled

$2,365a year, fuel only

The 2001 Pontiac Firebird/Trans Am is EPA-rated at 20.3 MPG combined (16.8 city / 26 highway). Over 15,000 miles a year that is about 739 gallons, $2365 a year in fuel, or $0.158 per mile at $3.20/gal.

Across its full 1988–2001 run it averages 18.8 MPG, improving by 2.3 MPG over 8 model years.

LOGBOOK ENTRY · 2001 PONTIAC FIREBIRD/TRANS AM SHEET PONTIAC-FIREBIRD-TRANS-AM · 8 YEARS ON FILE
20.3 MPG COMBINED 0 60

The band is how far one gallon carries it: 20.3 of the 60 MPG this scale runs to. The square tick is the subcompact cars average, 24.2.

Fuel, per year
$2,365 at 15,000 mi
Per mile
$0.158
Per kilometre
$0.098
Gallons burned/yr
739

1 mile = 1.609344 km · fuel at $3.20/gal, fixed JUL 2026

Test figure — not a road result

SOURCE·US EPA fuel-economy test data·FUEL ASSUMED AT $3.20/GAL FROM JUL 2026·REVIEWED JUL 2026

Combined20.3MPG · 2001
Cost per mile$0.158at $3.20/gal
Fuel per year$236515,000 miles
Class rank157of 229

How this is worked out

  1. Start from the EPA combined figure for the model year — a laboratory test cycle run to a fixed procedure, not a road result. Where a year sold several engines or drivetrains, the trims are averaged and the trim count is printed beside the row so you can see how much averaging is behind it.
  2. Fix a pump price. This site keeps one reference price, $3.20 a US gallon, fixed JUL 2026 and printed next to every dollar figure it produces. It is an assumption with a date on it, not a quote — put your own price in.
  3. Fix an annual distance. Every annual figure on this site uses 15,000 miles a year, roughly the US average. A cost per year with no stated distance is not a number, it is a mood.
  4. Divide distance by economy for gallons, multiply by price for the year's fuel, divide price by economy for one mile. The per-kilometre line is that last figure divided by 1.609344 — the same money, in the unit most of the world drives in.
  5. Stop there. No depreciation, no tyres, no insurance, no servicing. This is the fuel line of the ledger and it is labelled as one; depreciation usually dwarfs everything on it.
gallons/yr = miles/yr ÷ MPG
fuel  $/yr = gallons/yr × $/gal
cost  $/mi = $/gal ÷ MPG
cost  $/km = cost $/mi ÷ 1.609344

The full method, the licence note, and what a test figure cannot tell you →

Re-run the ledger at another pump price

Every line above rests on one pump price. Here is the same entry re-costed at six others, because the price is the part that changes while the test sheet stays put.

Fuel pricePer mile10,000 mi/yr15,000 mi/yr20,000 mi/yr
$2.50/gal $0.123 $1232 $1847 $2463
$3.00/gal $0.148 $1478 $2217 $2956
$3.20/gal $0.158 $1576 $2365 $3153
$3.50/gal $0.172 $1724 $2586 $3448
$4.00/gal $0.197 $1970 $2956 $3941
$4.50/gal $0.222 $2217 $3325 $4433
$5.00/gal $0.246 $2463 $3695 $4926

SOURCE·US EPA fuel-economy test data·FUEL ASSUMED AT $3.20/GAL FROM JUL 2026·REVIEWED JUL 2026

The whole service history, sheet by sheet

8 model years on file. Read down the combined column: a nameplate that got heavier shows it here long before any brochure admits it.

Every model year of the Pontiac Firebird/Trans Am the EPA has a test sheet for, averaged across trims.EPA DATA · JUL 2026
YearCombinedCityHighwayEPA fuel cost/yrCO₂ g/miTrims
2001 20.3 MPG16.826 $34504404
2000 19.5 MPG16.325.5 $36004574
1999 19.8 MPG16.825.5 $35504514
1992 18.1 MPG15.123.9 $37934907
1991 18 MPG15.123.6 $38294947
1990 18 MPG15.123.4 $38294947
1989 18.4 MPG15.423.7 $37434837
1988 18 MPG15.323.6 $38294957

Where a model year offered several engines or drivetrains, the figure is the average across all EPA-tested trims that year — the trim count is shown so you can see how much averaging is involved.

SOURCE·US EPA fuel-economy test data·FUEL ASSUMED AT $3.20/GAL FROM JUL 2026·REVIEWED JUL 2026

Marked against the rest of the subcompact cars bay

Among the 229 subcompact cars models tracked here, the Pontiac Firebird/Trans Am ranks 157 on current figures, against a class average of 24.2 MPG — the square tick on the gauge above.

Closest more-efficient alternatives in the same class: BMW 325ci (20.5), BMW 328ci Convertible (20.5), BMW 330ci (20.5), Mercedes-Benz 190E 2.3 (20.5), Nissan 200SX (20.5).

Tailpipe CO₂ is rated at 440 grams per mile, which works out to roughly 6.6 tonnes a year at 15,000 miles.

Questions asked across the counter

What MPG does the Pontiac Firebird/Trans Am get?

The 2001 Pontiac Firebird/Trans Am is rated at 20.3 MPG combined by the EPA — 16.8 city and 26 highway. Across all 8 model years in the database it averages 18.8 MPG, ranging from 17 to 21 depending on year and trim.

How much does a Pontiac Firebird/Trans Am cost in fuel per year?

At 20.3 MPG and 15,000 miles a year, it burns about 739 gallons — roughly $2365 a year with fuel at $3.20 a gallon, or $0.158 per mile. The EPA's own published annual figure for the 2001 model is $3450.

Has the Pontiac Firebird/Trans Am become more efficient over time?

Yes. It has gone from 18 MPG in 1988 to 20.3 in 2001 — an improvement of 2.3 MPG, or 13% across 8 model years.

Is the Pontiac Firebird/Trans Am efficient for its class?

It ranks 157 of 229 in the Subcompact Cars class on current figures, against a class average of 24.2 MPG. That is 3.9 worse than typical for the class.

SOURCE·US EPA fuel-economy test data·FUEL ASSUMED AT $3.20/GAL FROM JUL 2026·REVIEWED JUL 2026

Cost per mile, per kilometre and per year are computed at a reference price of $3.20 a gallon over 15,000 miles, fixed JUL 2026 — set your own pump price. Estimates based on official test figures and average fuel prices. Real-world consumption varies with driving style, load, terrain and maintenance.

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Amit Sharma

Auckland real-estate agent and marketer. Builds free, sourced data tools.