The latest revamp of the Transit came in 2000, to produce what I have called the Mk4. Although retaining the streamlined profile of the Mk3, the Mk4 has more pronounced angular edges and a greater use of black relief around the windscreen and side windows. As before, the "basic" model is the short-wheelbase low-roof van, as seen in the form of 5543F on the left. The other type commonly used as a service vehicle is the long-wheelbase mid-height van, typified by 5064F on the right.

The three height options of the Mk3 Transit remain available on the Mk4, but a fourth length option was added in the form of the Medium Wheelbase version. London Buses specified mid-length high-roof Transits for its deliveries in 2002/3, as seen on 5578F left. Other users specify the long-wheelbase variant on high-roof vans, as seen on 5225F on the right. A "Jumbo" variant is also available, with an extended rear overhang and flared mouldings on the rear wheelarch though no pictures have yet come to light.

Some of the variants can be difficult to distinguish, particularly the short and medium-wheelbase versions. The key difference is that, on short-wheelbase vans (left), the rear wheelarch starts right behind the side access door (or panel line if no door is present). On medium-wheelbase vans (right), there is a slight gap here. The diagram below shows all the main van variants. EL stands for Extended Length.

Minibuses are available in a range of sizes, from the Tourneo to an extended length mid-height "Jumbo". Shown here are two mid-height examples used by the London Buses Passenger Data team. 5664F on the left is medium-wheelbase while 5427F on the right is long-wheelbase. Note that minibuses now require emergency exit windows to be fitted, these two examples having one each, while extended length versions have two.

Crew Vans are also a feature of the Mk4 Transit range, either with or without side windows. While Mk3 Crew Vans were generally long-wheelbase mid-height versions, the Mk4 ones seem to cover more options. On the left is 5387F, based on a short-wheelbase low-height bodyshell. 5383F on the right is a long-wheelbase high-roof version. Note that emergency exit windows are also specified in side access doors.

Other types of Mk4 Transit van are available but rarely used as service vehicles. 5494F on the left is an example of a Luton van, where the body is separate and extends over the cab. This vehicle is actually a mobile exhibition unit. 5519F on the right (sorry, no link) is a similar van but without the over-cab extension.

The last type of Mk4 Transit to be looked at is the Chassis-Cab, most commonly used with a dropside body. Two basic variants exist, although there are further length options. 5124F on the left shows the single cab type, while 5191F on the right shows the crew-cab version. Note that the crew cab now features doors and side-windows for the rear seat. Both of these examples feature tail-lifts.

A useful feature of the Mk4 Transit is that many carry a badge showing the model number underneath the cabside windows. On these, the lower figure (e.g. 90) is the engine power (in PS, or Indicated Horsepower), while the higher figure (e.g. 350) relates to the vehicle weight, being roundly one tenth of the Gross Vehicle Mass in KG.

The Transit Connect is unlike any other Transit, being smaller and designed as a replacement for the Ford Escort Van. It comes in two lengths and two heights and is also available as a windowed "Tourneo" version. 5545F on the left is a T200 low-height van that appears to be of the shorter type. 5774F on the right has the higher roof and also features a sliding side access door. The moulded wheelarches on this type give it a chunky, almost antiquated appearance.