Speed modification

Some cars in Asphalt Xtreme, Asphalt 8: Airborne and Asphalt Nitro do not display their effective in-game speed either on the speedometer or in the garage stats.
This anomaly, called Speed Modification or Fake Speed, does not change the car's speed in a race. Besides the discrepancy between displayed and true values, it only potentially lures unaware players into acquiring cars that are actually unable to meet their expectations.
The extent of its effect varies across cars. This table shows in percents the ratio of practical over displayed values. Any car not listed is free from Speed Modification; motorcycles are excluded as well, for they all share a marginal 100.03% coefficient.
Starting with the Showdown Update, the speed modification for most of the cars were removed. The speed modification for most of the cars were removed as of the 2019 Holiday Update.
=== Speed modification removal ===
The Showdown Update removed the speed modification for the following cars:
*Alfa Romeo Giulietta 2016 Veloce
*Hot Wheels Rip Rod™
*nanoFlowcell QUANTINO
*Range Rover Evoque Coupe HSE Dynamic
*Maserati Alfieri
The Sixth Anniversary Update removed the speed modification for the following cars:
*Lamborghini Estoque
*Porsche Carrera GT
*Aston Martin Vulcan
The 2019 Halloween Update removed the speed modification for the following cars:
*Falcon F7
*Mosler GT3
*Icona Vulcano V12 Hybrid
*McLaren 720S
*HTT Pléthore LC 750
*Renault Sport R.S. 01
*McLaren MP4-31
*2018 McLaren X2
The 2019 Holiday Update removed the speed modification for the following cars:
*2015 GTA Spano
*9FF GT9 VMAX
*Arash AF10
*Bugatti 16.4 Grand Sport Vitesse
*Chrysler ME412
*Devel Sixteen Prototype
*Ferrari Enzo Ferrari
*Ferrari FXX Evoluzione
*GTA Spano
*Hennessey Venom GT
*Koenigsegg Agera R
*Koenigsegg One:1
*Lamborghini Egoista
*McLaren F1 XP-5
*McLaren P1™ GTR
*Mercedes-Benz Silver Lightning
*Mosler Land Shark
*Mosler Super GT
*Pagani Huayra
*Peugeot Onyx
*RUF CTR 3
*SSC Tuatara
*SSC Ultimate Aero XT
*TRION NEMESIS
*W Motors Fenyr Supersport
*W Motors Lykan HyperSport
*Weber Faster One
== Notes ==
* Displayed and real Top Speed considered with Level 3/Perfect Nitro applied.
* Elite cars at default Elite settings.
* The "+ or -" header indicates whether the car is faster or slower than displayed.
Category:Mathematics
Category:Asphalt 8: Airborne