Performance Review: Jaguar Mark X 4.2L Overdrive - [1964]

Figures & Specs Summary:

Jaguar Mark X Performance Review.

Introduction:

This edition of the Jaguar Mark X 4.2L Overdrive is the 4 speed / Manual version and was first brought out in 1964. This was at around the same time as the introduction of the 1965 Aston-Martin DB6 1965 and the 1964 Jaguar XJ 13 5.0 V12.This particular Jaguar Mark X has a 4235cc Naturally Aspirated Petrol powerplant with 6 cylinders in a St formation.

Alternative Petrol St6's includes the 1965 Aston-Martin DB6 1965

The Mark X shares its Petrol St6 engine configuration with the likes of the 1965 Aston-Martin DB6 1965 and the . If you're looking for other fast cars which share the Mark X's Rear Wheel Drive, Saloon combination then how about the 1982 Fiat X1/9 1.5 8V or the 1965 Aston-Martin DB6 1965.

Power and Weight:

Weighing in at 1839 kgs (4054 lbs) this makes the Jaguar Mark X 4.2L Overdrive in the same weight category as the 2023 BMW 3 Series M3 CS 3.0 Twin Turbo G80 or the give or take 50kg.

The Jaguar Mark X shares the same bhp with the 2022 Hyundai i30 N Performance 2.0 Turbo (276 bhp)

In terms of power the 4235cc 12V St6 engine produces 265 bhp (197 kW) @ 5400 rpm similar to the 2022 Hyundai i30 N Performance 2.0 Turbo (276 bhp) or the 2021 KIA K5 GT 2.5 Turbo (290 bhp).

The Naturally Aspirated St6 throws out 283 lb-ft (383.6 Nm) @ 4000 rpm placing it with cars of similar torque performance figures such as the 2023 Toyota Corolla GR Morizo Edition 1.6 Turbo (295 lb-ft) or the 2023 Toyota Corolla GR Circuit Edition 1.6 Turbo (273 lb-ft).

Power to Weight:

If one combines the weight with power or torque performance for the Jaguar Mark X you can get a better idea of it's real world performance.

The 2005 BMW 3 Series 330i M-Sport Manual E90 (169.1 bhp per ton) has similar Bhp Per Ton stats as the Jaguar Mark X.

The Jaguar Mark X has a Power to weight ratio of 144.1 bhp per ton and 153.8 lb-ft per ton. Bhp Per Ton figures of the 1964 Mark X competing with the 2005 BMW 3 Series 330i M-Sport Manual E90 (169.1 bhp per ton) or the 1986 BMW 3 Series M3 E30 (169.0 bhp per ton).

Power to Weight(cont.):

If you agree with the late great Carroll Shelby then arguably an even better indicator of potential performance, Torque. Use weight as well and you end up with - Torque per ton, with the Jaguar Mark X generating around 153.8 lb-ft per ton. If you're curious as to what other cars have as much torque to weight then look no further than the 1978 Ford Mustang 2 King Cobra (178.8 lb-ft per ton) or the 1966 Ferrari 365 California 4.4 V12 (178.6 lb-ft per ton).

Acceleration:

With a 0-60mph time of 10.40 secs or a 0-100km/h (0-62mph) of 10.7 secs, this made the Jaguar Mark X 4.2L Overdrive as fast as the 2012 Mini Cooper Paceman (10.40 secs) the 2007 Mazda 2 1.5 Sport (10.40 secs) the 1977 Bentley T 2 6.8 V8 (10.40 secs) the or the 1965 BMW 2000 CS (10.40 secs). This Jaguar Mark X 4.2L Overdrive is also faster than the 1993 Toyota T100 3.0 V6 (10.50 secs) the 1975 Chevrolet Vega Cosworth Twin Cam (10.50 secs) the 1971 Chevrolet Vega 2300 GT 4 Speed (10.50 secs) the and the 1963 Mercedes SL Class 230SL W113 (10.50 secs).

Quarter Mile time is a close race between the Mark X and the 1989 Porsche 944 Turbo

When talking about the performance of the Jaguar Mark X on the drag strip it can reach a quarter mile in an estimated 15.54 secs @ 88.0 mph. Similar performance down the quarter mile can be found with the the 1989 Porsche 944 Turbo (15.47 secs), the 2001 Ford Mustang 4th Gen Bullitt GT (15.47 secs), and the 1971 Pontiac Tempest GT-37 6.6 V8 (15.48 secs).

Top Speed:

Modern performance cars are often artificially restricted to 155mph. The 1964 version of the Jaguar Mark X 4.2L Overdrive has a maximum speed of 123mph.

Top Speed of the 1964 Mark X equals the 2012 Peugeot 208 1.6 THP (134 mph)

If maxing out your car on the AutoBahn is your thing and you're wondering what's faster than the 1964 Jaguar Mark X 4.2L Overdrive then how about the 2012 Peugeot 208 1.6 THP (134 mph), the 2009 Peugeot RCZ 2.0 HDi 200 GT (134 mph), or the 2008 Alfa-Romeo Mito 1.4 155 T-Jet Veloce (134 mph).

Related Links:

1964 Mark X Rivals List.

A Brief History of Jaguar

Car Comparison