The Super Drop Diamond appears to be based after the Rolls-Royce Phantom Drophead Coupé.
It is a two-door cabriolet version of the Super Diamond, being largely the same in length and size; this necessitates the car retaining its four-seat configuration (the front seats are roomier than those of the Super Diamond), although the car can only seat two passengers in-game. The premium interior is identical to its four-door counterpart, which in turn is very similar to that of the Schafter.
The car spawns exclusively with a chrome-gold paint job, complimenting which is a beige stripe on the bonnet and an optional black vinyl roof, usually when raining or at night. The doors open in a conventional manner, in contrast to the real Rolls-Royce Phantom Drophead Coupé's suicide-style doors (opened to rear) on which the Super Drop Diamond is based.
Much like the Super Diamond, the 'Drop' version features a huge front-mounted V12 engine driving the rear wheels, but this engine has a higher power/torque output to compensate for the Drop's increased weight and aerodynamic hindrances which naturally occur when turning a hardtop car into a convertible.
This vehicle is exceedingly rapid and surprisingly agile for a vehicle of these dimensions, feeling impossibly superior in terms of performance to most other cars in GTA IV. The top speed and acceleration performance is identical to the Super Diamond, with a 0-60mph time of 4.7 seconds and a top speed of 220mph.
- Yusuf Amir is well known for using the Super Drop Diamond as his primary land vehicle and method of transport. He owns four Super Drop Diamond cars, each has a chrome-gold paintjob. He eventually gives one to protagonist Luis Fernando Lopez after the mission "For the Man Who Has Everything".
- Frickie Van Hardenburg was photographed by Weazel News driving a Super Drop Diamond, as seen in the "Guns in Liberty" trailer for TBOGT.
- Luis Fernando Lopez is awarded with a Super Drop Diamond by Yusuf after the mission "For the Man Who Has Everything".
- Available by failing Yusuf Amir's missions "High Dive", "Caught with your Pants Down" and "For the Man Who Has Everything"; it appears during the firsty parts of each mission. The player can get these cars by killing Yusuf and parking the car at the safehouse.
- Awarded to the player by Yusuf following the mission "For the Man Who Has Everything", alongside a Gold SMG. Since then it would spawn near Yusuf's penthouse on Columbus Avenue.
- The Super Drop Diamond was first seen in the "Meet Yusuf Amir" trailer for TBoGT; at the opening of the trailer Yusuf was seen driving the car.
- In the "Guns in Liberty" trailer for TBoGT, Frickie Van Hardenburg is spotted driving a Super Drop Diamond. This scene, however, is not seen in the game itself, and no character in the game is shown driving this car except for Yusuf Amir.
- In-game attributes
- Unusually, the car never gets dirty, and as a result, the car cannot enter any car wash.
- The player can shoot from the car with the window glass still in place.
- When attempting to shoot enemies from behind, occasionally Luis' arm and gun will appear to stick out of the roof.
- The car shares the same rim design as the Albany Cavalcade SUV.
- The default radio station of this car is The Beat 102.7.
- The car has no reverse lights.
- This car doesn't have visible pedals or a shifter, so it's unknown if this car is either manual or automatic. Its good acceleration, however, suggests the car has a manual transmission.