🔥 Trending GTA 5: Upgrading the Slowest Cars to the Fastest

In Grand Theft Auto V (GTA V) and GTA Online, vehicle performance is a key aspect of gameplay, with significant differences between the fastest and slowest cars, especially when upgrades are considered. The top speeds are often accurately tested by community experts like Broughy1322, who uses long straight lines with fully upgraded vehicles to determine real performance ²⁵⁷.

Fastest Cars in GTA 5 (2026)

The landscape of the fastest cars in GTA 5 Online is constantly evolving, particularly with the introduction of HSW (Hao's Special Works) upgrades. As of 2026, the fastest car in GTA Online, based on tested top speed, is the Banshee GTS, reaching an impressive 138 mph (222 km/h) with HSW upgrades ⁵. Other top contenders for speed in GTA Online include:

• Vigilante: Known for its rocket boost, offering incredible acceleration ³.
• Deveste Eight: A super car with excellent straight-line speed ³.
• Krieger: Balances speed with superior handling ⁸.
• Emerus: Another top-tier super car with high top speed ⁸.
• Ignus: A fast option, especially with HSW upgrades ⁸.
• Weaponized Ignus: Offers speed combined with offensive capabilities ³.
• Benefactor LM87: A high-performance vehicle ³.

For the single-player Story Mode, the fastest car is generally considered to be the Truffade Z-Type, with a top speed of 127 mph (204 km/h) when fully upgraded ⁷.

Slowest Cars in GTA 5

While specific "slowest" cars are not as frequently highlighted in rankings, many basic, non-sports, or utility vehicles fall into this category. These often include:

• Tractors and Utility Vehicles: Designed for function rather than speed.
• Older Sedans and Compacts: Many of the common traffic cars found around Los Santos.
• Vans and Trucks: Generally have lower top speeds and acceleration.

These vehicles typically have top speeds significantly lower than 100 mph, with some struggling to reach even 60-70 mph without upgrades.

Impact of Upgrades

Upgrades play a crucial role in determining a car's performance in GTA 5 and GTA Online ¹. Every upgrade can tangibly impact a vehicle's speed, acceleration, handling, and braking ¹.

• Engine Upgrades: Directly increase horsepower and top speed.
• Transmission Upgrades: Improve acceleration and gear shifting.
• Turbo Tuning: Provides a significant boost in acceleration, especially at higher speeds.
• Brakes: Enhance stopping power, allowing for better control and faster cornering.
• Suspension: Affects handling and stability, which can indirectly contribute to faster lap times ¹.

Even the slowest cars can see noticeable improvements with full upgrades, though they will rarely, if ever, match the performance of a fully upgraded supercar ⁴⁶. For instance, a fully upgraded basic sedan might become more drivable and slightly faster, but it won't compete with a Banshee GTS or a Vigilante. Conversely, supercars require full upgrades to reach their advertised top speeds and achieve their best performance in races ²⁷. The difference between an un-upgraded supercar and a fully upgraded one can be substantial, often making the difference between winning and losing a race ¹.