Everyone wants the fastest car, and in Need for Speed Unbound the top-tier S+ machines are the dream builds that dominate the late-game races and online lobbies. But "fastest" depends on what you mean - raw top speed, acceleration, or race-winning pace - and the best fast car is often not the one with the highest number on paper. This guide covers what actually makes a car fast in Unbound, which cars and tiers own the top end, how to build a competitive S+ machine, and why the fastest car is not always the one that wins.
What makes a car fast in Unbound
Speed in Unbound comes from a combination of the car's base potential and the parts and tuning you apply. Top speed, acceleration, handling and nitrous all contribute, and the performance parts you fit - engine, forced induction, tyres and more - push the car up the tiers while shaping its strengths. A car built purely for top speed will reach a higher number but accelerate and corner worse, while one tuned for balanced race pace sacrifices a little top end for all-round competitiveness. Nitrous is a big factor too: effective nitrous management gives bursts of speed that win races. Understanding that "fast" is a blend of these traits, not just top speed, is the foundation of building a genuinely quick car rather than a one-dimensional one.

The top tier - S and S+
The fastest cars in the game live in the S and S+ tiers, where the supercars and hypercars combine huge power with the handling to use it. These are the machines you build toward for the endgame campaign, the hardest events, and online racing against other players running their best cars. At this level, the margins are small - everyone is fast - so the difference comes from how well a car is built and tuned and how skilfully it is driven, especially nitrous deployment and carrying speed through corners. The best S+ cars are those that pair top-end speed with enough agility to stay competitive on technical courses, rather than straight-line monsters that struggle wherever there are corners.
Building a top-tier machine
To build a competitive S+ car, fit the best performance parts to maximise the car's rating, then tune the balance for your events: more top speed for long, open races, more acceleration and grip for technical ones. Nitrous upgrades and management are crucial at this level, giving the bursts that overtake rivals and win photo finishes. Because you will keep your best S+ cars for the endgame and online, they are worth investing heavily in - this is where your accumulated cash should go once you are past the early tiers. A fully built and well-tuned S+ car, driven well, is what lets you compete at the top, and many players settle on one or two favourites to perfect rather than spreading across many.
| Factor | What to do |
|---|---|
| Performance parts | Max the rating to reach S/S+ |
| Tuning balance | Top speed for open races, grip for technical |
| Nitrous | Upgrade and manage it - wins photo finishes |
| Handling | Enough agility to use the speed on corners |
Fastest vs best
As with any racer, the fastest car on paper is not always the one that wins. A car built for maximum top speed can be beaten by a better-balanced rival on a course with corners, where handling and acceleration out of bends matter more than terminal velocity. For actual racing, a competitive, well-tuned car you can drive consistently beats a twitchy top-speed special that is hard to control. Reserve the absolute top-speed builds for events and stretches that reward them, and do your racing in a balanced machine. Confusing raw speed with race-winning ability is a common mistake - the best car is the one that wins, which usually means balance, not just the biggest number. See our best cars guide for the all-round picks.

Reaching the top without the grind
Building and fully upgrading top-tier S+ cars takes serious cash. If you want to reach the top of the performance charts quickly, the NFS Unbound Modded Starter Save delivers a modded starter save loaded with money and progression, so you can buy and build the fastest cars from the start. It is on the Need for Speed Unbound services hub, and our money guide covers earning the cash yourself.
Testing and refining your build
Once you have built a fast car, testing and refining it is how you squeeze out its real potential. Take it to the kind of events and roads you intend to race on and see where it falls short: does it run out of top speed on long straights, spin up under power out of corners, or lack the acceleration to overtake? Each weakness points to a tuning adjustment - gearing, grip balance, or nitrous management. A build that looks good on paper often needs a few laps of real driving to dial in, and small tuning tweaks can noticeably change how competitive the car feels. This iterative loop - drive, identify the weakness, adjust, drive again - is how serious players perfect their top-tier cars, and it teaches you far more about what makes a car fast than numbers alone. Investing a little time in testing after building, rather than assuming the car is done once the parts are fitted, is what turns a merely quick car into a genuinely race-winning one you can trust in the hardest events.
Nitrous - the hidden speed factor
When players talk about the fastest cars, they often overlook the single biggest in-race speed factor: nitrous. A well-timed nitrous boost provides a burst of acceleration and top speed that can decide a race, and managing it well is as important as the car's raw stats. The skill is in deployment - saving nitrous for long straights and overtaking opportunities rather than wasting it where it achieves little, and chaining it with the ways the game lets you refill your nitrous during a race. Two identical cars will post very different race results depending on how their drivers manage nitrous, which is why it is a core part of being fast rather than just an occasional button. Upgrading your nitrous capacity and learning to build and spend it strategically turns a merely quick car into a race-winner. Any discussion of the fastest cars is incomplete without it, because in actual races the effective speed of a car is as much about its nitrous as its top-speed figure on paper.
The bottom line on speed
The fastest cars live in the S and S+ tiers, but speed in Unbound is a blend of top speed, acceleration, handling and - crucially - nitrous, not a single number. Build your top-tier car with the best parts, tune the balance for your events, and master nitrous deployment, since a well-managed boost decides races. Remember that the fastest car on paper loses to a balanced rival wherever there are corners, so race in a controllable machine and reserve pure top-speed builds for events that reward them. Get the blend right and you will be genuinely fast where it counts, not just quick in a straight line.
Related Need for Speed Unbound guides
- NFS Unbound Modded Starter Save
- NFS Unbound best cars
- NFS Unbound customization guide
- NFS Unbound how to make money fast
- NFS Unbound drifting guide
- NFS Unbound The Grand guide
Frequently Asked Questions
What is the fastest car in Need for Speed Unbound?
The fastest cars live in the S and S+ tiers - the supercars and hypercars with huge power and the handling to use it. But the fastest build on paper isn't always the best racer, since a balanced car beats a pure top-speed one wherever there are corners.
What makes a car fast in NFS Unbound?
A blend of top speed, acceleration, handling and nitrous, shaped by the performance parts and tuning you apply. A car built purely for top speed reaches a higher number but corners and accelerates worse, so genuine speed balances all the traits.
How do you build a good S+ car in NFS Unbound?
Fit the best performance parts to max the rating, tune the balance for your events (top speed for open races, grip for technical), and upgrade and manage nitrous for race-winning bursts. Invest heavily in one or two favourites to perfect for the endgame and online.
Is the fastest car the best for racing?
Not always - a maximum top-speed build is beaten by a better-balanced rival on courses with corners, where handling and acceleration matter more. Reserve top-speed specials for events that reward them and race in a balanced, controllable car.
Can I get the fastest cars quickly?
A modded starter save delivers an account loaded with money and progression, so you can buy and build the top-tier S+ cars from the start instead of grinding the cash to upgrade them.