No specific cheat code is available for spawning an Infernus directly. However, you can use the "Vehicle Spawn" cheat and then select the Infernus.
The Infernus is a sports car in GTA IV. To spawn an Infernus using a cheat code, try the following: gta iv infernus cheat code
You're looking for the cheat code for the Infernus in Grand Theft Auto IV. Here's the information: No specific cheat code is available for spawning
You can use the following cheat code to spawn an Infernus: gta iv infernus cheat code