Navistar International 8K Information provided and statements contained in this presentation that are not purely | NAV 30 Jun 08

Navistar’s

FY 2008 1

& 2

Quarter

Financial Results

June 30, 2008

Exhibit 99.1

Safe Harbor

Statement

Information provided and statements contained in this presentation that are not purely

historical

are

forward-looking

statements

within

the

meaning

Section

27A

the

Securities

Act, Section

21E of the Exchange Act, and the Private Securities Litigation Reform Act of

1995. Such forward-looking statements only speak as of the date of this presentation and the

company assumes no obligation to update the information included

in this presentation. Such

forward-looking statements include information concerning our possible or assumed future

results of operations, including descriptions of our business strategy. These statements often

include words such as “believe,”

“expect,”

“anticipate,”

“intend,”

“plan,”

“estimate”

or similar

expressions. These statements are not guarantees of performance or results and they involve

risks, uncertainties and assumptions. For a description of these

factors, see Item 1A. Risk

Factors of our Form 10-K for the fiscal year ended October 31, 2007, which was filed on

May

29, 2008. Although we believe that these forward-looking statements are based on reasonable

assumptions, there are many factors that could affect our actual

financial results or results of

operations and could cause actual results to differ materially from those in the forward-looking

statements.

Other Cautionary Legends

•

The financial information herein contains both audited and

unaudited and has been prepared by management in good faith

and based on data currently available to the company.

•

Certain Non-GAAP measures are used in this presentation to

assist the reader in understanding our core manufacturing

business.

We believe this information is useful and relevant to

assess and measure the performance of our core manufacturing

business as it illustrates manufacturing performance without

regard to selected historical legacy costs (i.e. pension and other

post-retirement costs) and other expenses that may not be related

to the core manufacturing business.

Management often uses this

information to assess and measure the performance of our

operating segments.

A reconciliation to the most appropriate

GAAP number is included in the appendix of this presentation.

200,000

300,000

400,000

500,000

1999

2000

2001

2002

2003

2004

2005

2006

2007

2008

Guidance

Est. 2009

Traditional U.S. and Canada Retail Sales

Class 6 –

8 Industry Landscape

FY 2008 retail class 6-8

annualized using 1

Half

information

Navistar’s fiscal year is 11/1-10/31

Industry

FY99

FY00

FY01

FY02

FY03

FY04

FY 05

FY06

FY 07

School Bus

33,800

33,900

27,900

27,400

29,200

26,200

26,800

28,200

24,500

20,000

24,000

Class 6-7 -

Medium

126,000

129,600

96,000

72,700

74,900

99,200

104,600

110,400

88,500

63,000

70,000

Combined Class 8 (Heavy & Severe Service)

286,000

258,300

163,700

163,300

159,300

219,300

282,900

316,100

206,000

175,000

191,000

Total Industry Demand

445,800

421,800

287,600

263,400

344,700

414,300

454,700

319,000

258,000

285,000

FY 08

Guidance

Actual

100,000

200,000

300,000

400,000

500,000

600,000

FY2006

FY2007

FY2008 Fcst

50,000

100,000

150,000

FY2006

FY2007

FY2008 Fcst

100,000

200,000

300,000

400,000

500,000

FY2006

FY2007

FY2008 Fcst

10,000

20,000

30,000

40,000

50,000

FY2006

FY2007

FY2008 Goal

30,000

2008 Guidance

520,000

405,000

350K –

375K

U.S. & Canada Truck Industry

(Class 6-8 Units)

455,000

319,000

258K –

285K

Navistar Expansionary* Shipments

38,000

42,500

126,000

75,000

70K –

80K

Charts reflects midpoint of guidance

Navistar U.S. & Canada Shipments

(Class 6-8 Units)

Flat

Navistar Engine Shipments

*includes all military shipments

$200

$400

$600

$800

$1,000

$1,200

FY2006

Full Year

FY 2007

Full Year

FY2008

1st Half

FY 2008

Full Year

200,000

300,000

400,000

500,000

1999

2000

2001

2002

2003

2004

2005

2006

2007

2008

Guidance

Est. 2009

Half FY 2008 –

Actual vs. Guidance

Manufacturing

Segment

Profit

millions)

Consolidated Revenues

($ in billions)

Charts reflects midpoint of guidance

$838

$426

$950-1,000

Retail Class 6 -

FY 2008 retail class 6-8

annualized through April

Actual

$424

Guidance

$375-425

$20

$40

$60

$80

$100

$120

$140

$160

$180

$200

FY 2006 1st Half

FY 2007 1st Half

FY 2008 1st Half

Actual

$171

Guidance

$120-200

$103

Consolidated Pretax Income

($ in millions)

200,000

300,000

400,000

500,000

1999

2000

2001

2002

2003

2004

2005

2006

2007

2008

Guidance

Est. 2009

In Spite of Challenges….

Retail Class 6 -

FY 2008 retail class 6-8

annualized through April

Strong 1

Half

$20

$40

$60

$80

$100

$120

$140

$160

$180

$200

FY 2006 1st Half

FY 2007 1st Half

FY 2008 1st Half

Actual

$171

Guidance

$120-200

$103

Consolidated Pretax Income

($ in millions)

Truck

Some minor recovery but impact of Military,

ProStar

, etc.

Engine

Pick-up truck industry related volumes down

Expansionary related volumes up

Financial Services

Accounting for derivatives

Lower industry volume

Lower spread

Corporate Items

Post retirement

Professional fees

Taxes

5,000

10,000

15,000

20,000

1Q08

2Q08

75,000

80,000

85,000

90,000

95,000

100,000

105,000

PBT

($42M)

PBT

$213M

range

State of the Truck Industry

Fuel efficient Products

ProStar

LoneStar

MaxxForce

FY 2007 Engines

MaxxPower

APU

Diversification

Military

Mexico & Export

Additional ROW opportunities

Market Share opportunities

Contract price locks

Product value

Fuel economy

MaxxPower

APU

Durability

Pricing

Design Changes

International’s MaxxPower

Integrated APU

ProStar™

Skyrise

Military

Delivering On Our Commitments

Manufacturing Segment Profit

($ in millions)

Consolidated Revenues

($ in billions)

Half 2008 Guidance

Delivered

•

2008

and

quarter

10-Q’s

expected

end

of June

FY 2008 1

and 2

quarter 10-Q’s filed on

6/27/08

•

$6.7B -

$6.9B Total Revenue

•

$375M -

$425M Manufacturing Segment Profit

$424M Manufacturing Segment Profit

•

$120M -

$200M Consolidated PBT

$171M Consolidated PBT

$162M Net Income and $2.22EPS

*$1.6B based on assumption of US & Canada Class 6-8 Retail Industry of 414,000

Summary

2008 industry recovery delayed with economy

2008 will be a strong year for Navistar despite a

weak U.S. and Canada industry

Plans in place for 2009 targets-$15+ billion

revenues with $1.6 billion Manufacturing Segment

Profit

Great Products

Competitive Cost Structure

Profitable Growth

Growth in Export and Military

Changing Diesel environment

Sustainability 2010 and beyond

SEC Regulation G

The above non-GAAP financial measures are unaudited and reflect a 2007 change in segment reporting methodology. This presentation is not in accordance with, or an alternative for,

U.S.

generally

accepted

accounting

principles

(GAAP).

The

non-GAAP

financial

information

presented

herein

should

considered

supplemental

to,

and

not

substitute

for,

or superior

to,

financial

measures

calculated

accordance

with

GAAP.

However,

believe

that

non-GAAP

reporting, giving

effect

the

adjustments

shown

the

reconciliation above, provides meaningful information and therefore we use it to supplement our GAAP reporting by identifying items that may not be

the

core

manufacturing

business.

Management

often

uses

this

information

assess

and

measure

the

performance

our

operating

segments.

have

chosen

provide

this

supplemental information to investors, analysts and other interested parties to enable them to perform additional analyses of operating results, to illustrate

the results of operations giving effect to the non-GAAP adjustments shown in the above reconciliations, to provide an additional measure of performance.

FY 2006

($ Billions)

FY 2007

($ Billions)

FY 2007

($ Billions)

FY 2008

($ Billions)

Revenues

$14

$12

$6.1

$6.9

($Millions)

Manufacturing Segment Profit

$838

$426

$1,000

$950

$208

$424

Corporate Items

($398)

($431)

($420)

($460)

($313)

($423)

($190)

($164)

Interest Expense

($192)

($196)

($140)

($160)

($157)

($177)

($96)

($83)

Financial Services Profit

$147

$128

$70

$50

$140

$100

$84

($6)

Sub total - Below the line range:

($443)

($499)

($490)

($570)

($330)

($500)

($202)

($253)

Consolidated Income Before Income Tax

$395

($73)

$510

$380

$1,270

$1,100

$171

Memo - Professional fees included above

in corporate items:

($71)

($224)

($140)

($160)

($20)

($30)

($84)

($99)

1st Half

SEC Regulation G

FY 2008

($ Billions)

($Millions)

$15+

Full Year

$1,600

$15+

FY 2009

($ Billions)

($Millions)

Navistar International (NAV) 8-KInformation provided and statements contained in this presentation that are not purely