A 115-HP lawn-mower-sized superkart pushed an F3 car to its absolute limitA 115-hp Superkart sounds like it should have no chance against a 390-hp Formula 3 car. Yet in a racing simulation from YouTube channel The Wind Tunnel, the tiny kart stayed close enough to the Dallara F3 2025 to make the final result come down to just 0.07 seconds. The simulated race took place around Singapore’s Marina Bay Street Circuit. The F3 had more than three times the Superkart’s power, a higher listed top speed and a quicker 0-100 km/h time, but the gap between the two machines kept shrinking as the lap went on. The F3 had 275 more horsepower The two vehicles were shown side by side before the simulated race. The Superkart 250cc produced 115 hp and weighed 205 kg, while the Dallara F3 2025 produced 390 hp and weighed 690 kg. The F3 also had the higher listed top speed at 320 km/h compared with 245 km/h for the Superkart. Its 0-100 km/h time was 2.79 seconds, compared with 3.03 seconds for the kart. The difference was visible at the start. The F3 launched ahead and continued to pull away on the longer sections of the Marina Bay circuit. During the lap, the simulated F3 reached 250 km/h, while the Superkart reached 224 km/h. The Superkart refused to disappear The race became much closer through the tighter sections of the circuit. The Superkart stayed close behind the F3 through the chicanes, even after losing ground on the straights. As the cars moved into the second half of the lap, the gap continued to fluctuate. The F3 still had the lead, but the Superkart remained close enough to threaten it rather than simply falling out of sight. By the final sector, the Superkart had closed the gap again. The F3 reached the finish first, but there was almost nothing between the two vehicles as they crossed the line. The difference was just 0.07 seconds The Dallara F3 2025 eventually won the simulated one-lap race by 0.07 seconds. The final qualifying times shown in the video were similarly close, with the F3 listed at 1:52.15 and the Superkart at 1:52.18. That result stands out because of the difference between the two machines. The F3 had 390 hp and weighed 690 kg, while the Superkart had only 115 hp and weighed 205 kg. The video does not establish that the Superkart is genuinely as fast as an F3 car in the real world. It is a computer-generated racing simulation, and the video does not provide details about tire settings, track grip or other physics parameters that could affect the result. The F3 won, but it had to fight for it There were no crashes, mechanical failures or pit stops during the simulated lap. The F3 simply managed to hold onto its advantage until the finish. Still, a 0.07-second margin makes the result hard to ignore. A 205-kg Superkart with a 250cc engine stayed within striking distance of a 390-hp F3 car around one of the world’s most demanding street circuits. The F3 won the race. The tiny Superkart just made it far closer than its 115-hp output would suggest. More from Fast Lane Only Unboxing the WWII Jeep in a Crate 15 rare Chevys collectors are quietly buying 10 underrated V8s still worth hunting down Police notice this before you even roll window down *Research for this article included AI assistance, with all final content reviewed by human editors.