Build a Car to Go Far Engines Tier List

Engines are the heartbeat of Build a Car to Go Far. Coins scale with distance, distance scales with sustained thrust, and sustained thrust dies without the right motor for your fuel and chassis. This engines tier list ranks power plants from the garage starter through mid-crate upgrades and into propellers and jets added with the flight update.

Pair this page with Parts for wheels, tanks, wings, and rockets, and with Best Builds when you want a full recipe. New players should skim Getting Started first.

Ranking rules

• S-tier: Best default choice once unlocked for its role (ground distance or flight).
• A-tier: Excellent; slight fuel, control, or crate-cost caveats.
• B-tier: Serviceable mid-game or niche picks.
• C-tier: Starters and outdated motors you replace as soon as crates allow.

Crates—including airplane crates after the flight patch—are the main unlock path. Coins fill gaps when RNG stalls. Offline earnings help you afford the next swap without panic spending.

S-tier engines

Late jet engines (flight crate peak)

Jets sit at the top once you can control altitude and feed them. On the longer post-update map, a stable jet turns biomes that punish ground cars into coin printers. They demand wings that are not dead weight and fuel tanks that match air time. If you nose-dive every run, drop to A-tier propellers until your flight hands improve.

Why S: Highest distance ceiling on air routes; best payout when the map stretches.

Top ground distance engines (late crate motors)

Not everyone is ready to fly. The best pure ground engines still earn S marks for players focusing on reliable asphalt loops, AFK-friendly setups, and co-op rides that stay upright. They sip fuel more predictably than early jets and work before you open airplane crates.

Why S: Maximum fair coins without flight mastery; anchors offline earning cars.

A-tier engines

Propellers (flight update)

Propellers are the friendly on-ramp to air travel. They forgive messy pitch control better than peak jets and still clear obstacles that stop wheeled-only builds. Ideal when airplane crates start dropping but your wing kit is incomplete.

Why A: Strong flight value with a softer skill floor; slightly lower ceiling than tuned jets.

Upper mid-game crate engines

These motors clearly leave the starter behind and carry you through mid biomes on the ground. They are the right buy when you are saving airplane-crate luck for later. Expect to outgrow them once true late engines or flight plants arrive.

Why A: Best coins-per-unlock for mid progression; rarely a brick.

Hybrid-capable engines with rocket synergy

Some mid-late engines pair unusually well with timed rockets—burst to crest a hill, then cruise. They miss S only because rocket timing adds variance in co-op chaos.

Why A: Excellent when you master boost timing; merely good when you mash.

B-tier engines

Early crate upgrades

First engine swaps after the tutorial motor. Worth installing immediately, not worth protecting emotionally when a better crate lands. They teach you how weight and fuel interact.

Why B: Necessary stepping stone; low late-game value.

Underfueled high-thrust experiments

Any engine that looks amazing in a 10-second flex clip but dies halfway across the stretched map lands here until you unlock matching tanks. Thrust without capacity is a trap after the flight update’s longer routes.

Why B: Situational; needs specific fuel parts to matter.

Novelty flight motors you cannot stabilize

If a propeller or jet variant constantly rolls your frame, treat it as B until wings and body balance catch up. The plant is not useless—your build is unfinished.

C-tier engines

Stock starter engine

Perfect for the first drives, terrible as a long-term plan. Replace it with the first credible crate engine you open. Keeping the starter “for nostalgia” costs real coin/hour.

Why C: Intentional beginner baseline.

Outdated pre-flight leftovers

Motors that felt fine on the short original route but cannot finish new biomes without constant rocket crutches. Demote them the moment mid-tier crates appear.

Why C: Map length power-crept them.

Starter → mid → late roadmap

1. Starter (C): Learn garage placement, steering, and how distance becomes coins.
2. Early crate (B): First meaningful speed/fuel upgrade; stabilize wheels at the same time.
3. Upper mid (A): Grind coins, use offline earnings, prepare airplane crate budget.
4. Propeller phase (A): First flights; practice controls on shorter air hops.
5. Jet / peak ground (S): Specialize—either dominate air biomes or perfect ground farms for AFK value.

Rockets remain support tools, not engines. Do not skip a motor upgrade just because you found a flashy booster.

Flight update impact on engine tiers

The update added propellers, jets, airplane crates, longer maps, new biomes, and revised flight handling. That reshuffled ranks:

• Pure short-map speed engines fell unless fuel kept up.
• Flight plants rose for players who learned the new controls.
• Ground S-tiers remained for AFK and co-op comfort.

When Runworks ships better fuel tanks (teased as on the roadmap in community notes), expect some A-tier high-thrust engines to promote because capacity was their only soft lock.

Spending advice

• Do not buy cosmetic body fluff before an engine upgrade.
• If codes ever appear, check the Codes Hub—still no confirmed active codes as of Nov 2026—then still spend into engines first.
• In co-op (max 10 players), compare run distances with friends before declaring an engine “broken.”
• Script users on the Auto Farm page still need a coherent motor; automation does not fix a C-tier plant.

Related links

• Tier List Hub
• Parts Tier List
• Best Builds
• Updates Hub

Treat engines as the first budget line in every garage session. Climb C → B → A → S deliberately, unlock flight plants when airplane crates land, and only then argue about tiny percentage differences inside the S tier.