McLaren 765LT: which version to buy
The McLaren 765LT has been in production since 2020-03-01 as one generation and one Coupe body. The catalogue lists two versions, both named 4.0 V8, both with 765 hp (562 kW) at 7500 rpm, 800 Nm at 5500 rpm, a 3994 cm³ Gasoline V-shaped 8-cylinder Turbo engine with Central placement, Direct injection (direct), 95 fuel, a 7-speed Robotic gearbox, and RWD.
The McLaren 765LT has been in production since 2020-03-01 as one generation and one Coupe body. The catalogue lists two versions, both named 4.0 V8, both with 765 hp (562 kW) at 7500 rpm, 800 Nm at 5500 rpm, a 3994 cm³ Gasoline V-shaped 8-cylinder Turbo engine with Central placement, Direct injection (direct), 95 fuel, a 7-speed Robotic gearbox, and RWD. They are not the same car on paper: one 4.0 V8 is 1339 kg with fuel use, CO2, and wheel sizes not measured; the other 4.0 V8 is 1388 kg with 22.1 / 10.2 / 12.3 L/100 km, 280 g/km CO2, and 245/35 R19 plus 305/30 R20 tyres. That 49 kg gap and the measured-versus-not-measured economy block is the whole buying decision.
Which 765LT version to choose
There is no second engine, no second gearbox, no extra generation, and no restyling in the data. Power, torque, displacement, 0–100 km/h (2.8 s), and top speed (330 km/h) are identical. Extra money, if any, cannot be priced here — prices are not in the data — so the comparison is arithmetic on mass, tank, consumption, CO2, and wheels.
Choose the 1339 kg 4.0 V8 if the number that matters is mass per horsepower. 1339 kg ÷ 765 hp = 1.75 kg/hp. 765 hp ÷ 1339 kg = 0.571 hp/kg. Tank is 72 L, same as the other version. Ground clearance is not measured. Gross weight is not measured. Wheel sizes are not measured. City, highway, and mixed consumption are not measured. CO2 is not measured. Eco class is not measured. You get the same 765 hp, 800 Nm, 2.8 s, and 330 km/h with 49 kg less kerb weight than the 1388 kg 4.0 V8.
Choose the 1388 kg 4.0 V8 if you need figures you can actually read: 22.1 L/100 km city, 10.2 L/100 km highway, 12.3 L/100 km mixed, 280 g/km CO2, and the tyre set 245/35 R19 / 305/30 R20. Mass per horsepower is 1388 ÷ 765 = 1.81 kg/hp. Power per kilogram is 765 ÷ 1388 = 0.551 hp/kg. Versus the lighter 4.0 V8 that is 0.06 kg more mass per horsepower and 0.020 hp/kg less. The tank is still 72 L. Ground clearance is not measured. Gross weight is not measured. Eco class is not measured.
If the two 4.0 V8 listings were the same specification written twice, kerb weight, consumption, CO2, and wheels would match. They do not. Treat them as two catalogue rows with one name and one power figure, split by 1339 kg versus 1388 kg.
Generations: what changed (and what did not)
One generation: 1 generation, Coupe, start 2020-03-01, stop not measured (still listed as current). Two versions, both 4.0 V8. There is no second generation to compare, so nothing in the data shows a later chassis, a later body, or a later gearbox. The generation did not add a second body type. It did not add a second drive layout: both versions are RWD. It did not add a second transmission type: both are Robotic with 7 gears.
What the generation does contain is the 49 kg kerb split and the economy split. Independent, spring suspension front and rear is the same on both 4.0 V8 rows. Front brakes are Ventilated disc on both. Rear brakes are Disc ventilated on both. Compression ratio is not measured on both. Bore and stroke are not measured on both. Valves per cylinder are 4 on both. Boost is Turbo on both. Engine location is Central on both. Fuel system is Direct injection (direct) on both.
There is therefore no “buy the later generation” answer. The only generation is 1 generation. The choice is which 4.0 V8 row to take inside it.
Engine specs: same name, same power, different mass
Power per litre is the same on both versions because displacement and power are the same: 765 hp ÷ 3.994 L = 191.5 hp/L. Torque per litre: 800 Nm ÷ 3.994 L = 200.3 Nm/L. Specific output at the stated peaks: 765 hp at 7500 rpm and 800 Nm at 5500 rpm on both 4.0 V8 rows.
| Version | hp | kW | rpm (hp) | Nm | rpm (Nm) | cm³ | Fuel | Cylinders | Layout | Boost | Gearbox | Gears | Drive |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 4.0 V8 (1339 kg) | 765 | 562 | 7500 | 800 | 5500 | 3994 | Gasoline | 8 | V-shaped | Turbo | Robotic | 7 | RWD |
| 4.0 V8 (1388 kg) | 765 | 562 | 7500 | 800 | 5500 | 3994 | Gasoline | 8 | V-shaped | Turbo | Robotic | 7 | RWD |
Fuel grade in the data is 95 on both. Cylinders: 8. Layout: V-shaped. Boost: Turbo. Do not read a third engine into the table — there is none.
The 1339 kg 4.0 V8 is 3.5% lighter than the 1388 kg 4.0 V8 (49 ÷ 1388). The 1388 kg 4.0 V8 is 3.7% heavier than the 1339 kg 4.0 V8 (49 ÷ 1339). Horsepower did not move with that mass. The catalogue did not give a second hp figure to pair with the extra 49 kg.
Performance and economy (mpg / L/100 km)
0–100 km/h is 2.8 s on the 1339 kg 4.0 V8 and 2.8 s on the 1388 kg 4.0 V8. Top speed is 330 km/h on both. The 49 kg difference does not show up as a different 0–100 or a different top speed in this dataset. If you are buying on the sprint number, both versions match. If you are buying on mass, they do not.
Fuel use:
- 4.0 V8, 1339 kg: city not measured, highway not measured, mixed not measured, CO2 not measured.
- 4.0 V8, 1388 kg: city 22.1 L/100 km, highway 10.2 L/100 km, mixed 12.3 L/100 km, CO2 280 g/km.
On the measured row, city use is 22.1 − 10.2 = 11.9 L/100 km above highway. Mixed 12.3 sits 2.1 L/100 km above highway and 9.8 L/100 km below city. Highway is 10.2 ÷ 22.1 ≈ 46% of the city figure. Mixed is 12.3 ÷ 22.1 ≈ 56% of city.
Tank is 72 L on both. Range cannot be stated for the 1339 kg 4.0 V8 because consumption is not measured. For the 1388 kg 4.0 V8, mixed 12.3 L/100 km into 72 L is 72 ÷ 12.3 × 100 = 585 km of mixed distance on a full tank (arithmetic on the given litres only). City: 72 ÷ 22.1 × 100 = 326 km. Highway: 72 ÷ 10.2 × 100 = 706 km. Those distances are tank ÷ consumption, not a tested range figure.
Eco class is not measured on either 4.0 V8.
Dimensions, weight, tank, wheels
Kerb weight is the only mass number present: 1339 kg versus 1388 kg. Gross weight is not measured on either version. Ground clearance is not measured on either version. Wheelbase, length, width, and height are not in the data — they are not measured here.
Tank: 72 L on the 1339 kg 4.0 V8 and 72 L on the 1388 kg 4.0 V8. The extra 49 kg is not extra fuel capacity.
Wheels:
- 4.0 V8, 1339 kg: wheel sizes not measured.
- 4.0 V8, 1388 kg: 245/35 R19 and 305/30 R20.
The measured tyre pair is staggered: 245 mm front-axle width class versus 305 mm on the other size, 19-inch versus 20-inch diameter in the size strings, 35 versus 30 profile. The lighter 4.0 V8 does not list those sizes; writing them onto that row would invent a number.
Suspension is Independent, spring front and Independent, spring rear on both. Front brakes Ventilated disc, rear Disc ventilated, on both. Clearance is not measured, so neither version can be chosen as the “higher” or “lower” car from this dataset.
Reliability and problems: what the numbers do and do not show
The data do not list faults, recalls, or reliability scores. Those topics are not measured. What can be said without leaving the table:
Both 4.0 V8 versions share the same 3994 cm³ Gasoline Turbo 8-cylinder V-shaped unit, Direct injection (direct), Central placement, 765 hp, 800 Nm, Robotic 7, RWD. A problem that is an engine-architecture issue would not, on these numbers, pick one version over the other. A problem that is a tyre or mass issue would: only the 1388 kg 4.0 V8 has 245/35 R19 and 305/30 R20 written down; only the 1339 kg 4.0 V8 is 49 kg lighter.
Consumption is only measured on the heavier 4.0 V8. Treating the lighter car as “more economical” because it is 49 kg lighter is not in the data — its L/100 km values are not measured. Treating the heavier car as “thirstier because of mass” is also not proven by a second consumption row; there is only one measured set: 22.1 / 10.2 / 12.3 and 280 g/km CO2.
What the extra 49 kg buys (and does not buy)
From the given numbers, the 1388 kg 4.0 V8 versus the 1339 kg 4.0 V8 buys:
- +49 kg kerb weight
- measured city 22.1, highway 10.2, mixed 12.3 L/100 km
- measured CO2 280 g/km
- measured wheels 245/35 R19 and 305/30 R20
It does not buy extra horsepower (765 vs 765), extra kilowatts (562 vs 562), extra newton-metres (800 vs 800), extra displacement (3994 vs 3994), a different gearbox (Robotic 7 vs Robotic 7), a different drive (RWD vs RWD), a faster 0–100 (2.8 vs 2.8), a higher top speed (330 vs 330), a larger tank (72 vs 72), a stated gross weight (not measured vs not measured), or a stated ground clearance (not measured vs not measured).
The 1339 kg 4.0 V8 versus the 1388 kg 4.0 V8 buys −49 kg and 1.75 kg/hp instead of 1.81 kg/hp. It does not buy a measured mpg/L/100 km set, a CO2 figure, or listed wheel sizes.
Practical pick
If the McLaren 765LT is bought as a Coupe from 1 generation (from 2020-03-01, stop not measured), both listed cars are 4.0 V8 at 765 hp. Split them as:
1. 4.0 V8 at 1339 kg — lowest mass per horsepower in this catalogue (1.75 kg/hp), same 2.8 s and 330 km/h, economy and wheels not measured. 2. 4.0 V8 at 1388 kg — same engine and sprint numbers, 1.81 kg/hp, with 22.1 / 10.2 / 12.3 L/100 km, 280 g/km CO2, and 245/35 R19 / 305/30 R20.
There is no third version, no Automatic, no AWD, and no second generation in the data. The version to buy is the 4.0 V8 whose 49 kg, consumption, and wheel row match what you need documented; the other 4.0 V8 is the same powertrain with 49 kg less kerb weight and those fields not measured.