Almost all car manufacturers have different variants available for the same car.
The car looks the same but will have different features inside and outside.
Maruthi uses L, V, Z alphabets. and their petrol and diesel variants are identified by XI and DI respectively.
Maruti: LXI, VXI, ZXI or LDI, VDI, ZDI
Honda: EMT, SMT, SVMT, VMT, VXMT, SAT, VAT, SCVT, VCVT etc
In honda, E, S, SV, V, VX are the variants and AT means automatic transmission and CVT means continuous variable transmission. so if a model says VCVT that means that the variant is V and it has a CVT transmission in it.
In Honda cars petrol and diesel is identified by the separate markings iVTEC and iDTEC respectively
These are the different trim levels which is found in maruti suzuki vehicles.
Trim refers to the items that can be added to the interior and exterior of automobile to increase its appeal.
XI denotes petrol engine
LXI is for lower variant cars
VXI includes basic features like ac , power steering etc
ZXI includes all the high end features like ABS,Air bags,music player etc.
It is used for differentiating car models in maruti suzuki.
XI - Petrol car
DI - Diesel car
L - Base model
V - Full option model
Z - Added features model
Now,
LXI is a base model Petrol car.
VXI is a full option Petrol car.
ZXI is a added features Petrol car
The same goes for LDI, VDI, ZDI. The only change is that it's a diesel car.
